CRG Discussion Forum

Camaro Research Group Discussion => Research Topics & Reports => Topic started by: Dave69x33 on July 04, 2009, 11:44:54 PM

Title: Gas tank date codes
Post by: Dave69x33 on July 04, 2009, 11:44:54 PM
** Adding a summary to Dave's original post **

 - The date is stamped on the front right corner of the tank. 67 has a calendar week code. 16 D 7 would be the 16th week of 67, day shift. 40 6N would be 40th week of 66, night shift.
 - The format changed in 68 and 69 to have the week counted from the beginning of the model year. The extended 69 model year used tanks dated for the 70 model year.

 - Several pics of the codes and the last post has the compiled data from the thread.      Kurt

** end summary **


I recently read a discussion topic relating to gas tanks.  In the discussion, gas tank date coding and design of the seam stitching was mentioned.  This prompted me to get my original tank out of storage and look for the date code, study the seam stitching, and compare the original bends in the flange versus those on my reproduction tank.  

The following pictures show the date code and its location.

I would like to confirm the date code "37 69", which I assume March 7, 1969.  My Camaro was assembled "05A", or the first week of May.

Questions:
For those of you with a 1969 survivor, or your original tank, what is your date code vs. the build data of your Camaro?  

If your tank is date coded in the same location as mine, you’ll find it stamped on the passenger side, rear corner flange, facing downward and visible from the bottom of the car.

Does anyone know of a shop or an individual that restores original gas tanks?  I need to have a few minor dents removed, and prefer to have the tank exterior re-galvanized back to its original look rather than use the “tank tone” paints available?

I plan to consult with local paint less dent removal companies about removing the dents.

Thanks!  
Title: Re: Gas tank date codes
Post by: rich69rs on July 05, 2009, 07:15:39 AM
Dave,

I just had the tank out of my 01C Norwood built RS this past Oct as a part of the restoration of the rear undrcarriage.  The tank was totally cleaned, stripped, sealed, etc. 

I have rechecked the pictures I took as well as taking another look under the car at the tank.  There were no stampings or date codes anywhere on it.  Sorry I couldn't provide any helpful info.

Good luck

Richard
Title: Re: Gas tank date codes
Post by: JohnZ on July 05, 2009, 03:09:08 PM
If your tank is date coded in the same location as mine, you’ll find it stamped on the passenger side, rear corner flange, facing downward and visible from the bottom of the car.

In the second photo, it appears to be on the front corner on the driver's side, not the passenger side?
Title: Re: Gas tank date codes
Post by: 69 skunk on July 07, 2009, 02:28:04 AM
Found mine right where John Z. said, front corner, drivers side.(http://i325.photobucket.com/albums/k391/TEAMDILLON/tank001.jpg)
The date appears to be 2 4 69 with the 4 stamped upside down. Anyways the car is 06A build.
Title: Re: Gas tank date codes
Post by: 1968RSZ28 on July 07, 2009, 06:16:12 PM
I just checked the original gas tank on my Van Nuys built 02C '68 Z/28.  John Z is right again as far as the stamp location (front corner on the driver's side).  My tank is stamped...  68 2 7

Paul

P.S.  I never noticed this before!  It's always very cool to find out new information like this...    :)
Title: Re: Gas tank date codes
Post by: Pex68 on July 07, 2009, 07:38:52 PM
I brought this up in the other thread.  The survivor judges at the show said it was year and day, no month.  Not sure how correct that interpetion is, especially now seeing others, but my car is a 12D 68 and stamp is 68 20 so go figure.  They also had a original 69 Baldwin Phase 3 car at the show this year and the tank had an extra number in there, was like 69 8 28 if I remember correctly.  They were all scratching our heads at that one.

And yes, drivers side front corner.

(http://i33.photobucket.com/albums/d80/pex68/DSC03894.jpg)

So I'm curious, how did your reproduction tank compare to the original?
Title: Re: Gas tank date codes
Post by: 1968RSZ28 on July 07, 2009, 10:41:33 PM
Chris -

Based on your gas tank date code (68 20) it looks like the year and Julian date is the correct format.  They wouldn't have dated something February 0.

Our gas tanks were made one week apart (my tank date code is 68 27) on a Saturday!  January 27th, 1968 works for my 02C car, but I'm curious what the judges had to say about your tank's date code (January 20th, 1968 for a 12D car).  Did they think it was mis-stamped?  Replaced?  Or?

Paul     
Title: Re: Gas tank date codes
Post by: Dave69x33 on July 08, 2009, 02:01:20 AM
Sorry everyone....I glanced at my picture and described the location incorrectly.  Thanks for the correction.

It is kind of cool to uncover some new date code on a part.  Again, I read about date codes on tanks on CRG then had to get my old original tank out to see if I could find the date code.  My goal was to uncover some common date coding on tanks versus the build date of our Camaros.  Hopefully we can uncover more on this topic!

PS: Much to my wife's dismay, I am glad that I am a "pack rat" and never throw any of those "old, rusty and dirt parts" stored in the attic.

Pex68,

The repro tank appears identical except for the bends in the mating flange.  It is hard to get good pics of the repro tank installed my car to clearly show the difference.  Attached are a couple pics of my original tank showing the bends.  If you by a repro, hopefully you can use these pictures or your original tank to compare.  I restored my car back in 1995 – 2000, so better quality tanks may now be available.

Richard,

What did you use to strip and seal your tank?  I thought about using paint stripper on my, then try to buff it back to the approximate original look then clear the tank with a satin clear. 

Thanks Everyone.
Title: Re: Gas tank date codes
Post by: Dave69x33 on July 08, 2009, 02:06:05 AM
Here is one more pic of my original tank to see the bend in the flange.

Dave
Title: Re: Gas tank date codes
Post by: rich69rs on July 08, 2009, 05:35:25 AM
There were no stampings or date codes anywhere on it.

Gentlemen,

I stand corrected.  Took another careful look under the car at the tank and sure enough, on the LH (driver) side front corner on the bottom the tank is coded 22 69 (Julian date; i.e. 22nd day of 1969), which would be consistent with my 01C Norwood build.  All four numbers are very lightly stamped.  The 69 is barely visible, but it is there.  Stamping is so light I never noticed it before, even after detailing the tank.  See attached picture.

Another great example of how this forum brings knowledge to us all.
Title: Re: Gas tank date codes
Post by: rich69rs on July 08, 2009, 05:47:13 AM
Richard,

What did you use to strip and seal your tank?  I thought about using paint stripper on my, then try to buff it back to the approximate original look then clear the tank with a satin clear. 

My tank (original to the car) was covered with dealer undercoating.  It is a mess to get off.  Several applications of airplane paint stripper (available at WalMart), some scraping to get as much off as possible, then I went over the entire tank with a wire wheel (actually about 3 wheels) to get the tank completely stripped down to bare metal on the outside.  First picture shows the tank after it came out of the car.  Second picture shows the tank after stripping and wire wheel cleaning.  Picture in following post shows the tank ready to go back into the car.

The inside of my tank was rust free and in very good condition, so I rinsed it out and then chemically cleaned and sealed it with a product from Eastwood.  Outside of the tank was finished off with a zinc oxide tank tone paint, also from Eastwood. 
Title: Re: Gas tank date codes
Post by: rich69rs on July 08, 2009, 05:49:34 AM
The attached pic is after the tank was finished.
Title: Re: Gas tank date codes
Post by: Buddy on July 08, 2009, 01:52:30 PM
First Question I have is...Does 67's have date codes???? Where?  If not, should I restore the original or replace it with repro??

I think I know the answer.....here comes more work and cost...aarrrgggg.

Thx
Buddy
Title: Re: Gas tank date codes
Post by: JohnZ on July 08, 2009, 02:23:36 PM
The attached pic is after the tank was finished.

Although the vendors love to sell parts that never existed, insulators were never used between the tank straps and the tank on any 1st-gen Camaro; they were only used between the top of the tank and the underbody.
Title: Re: Gas tank date codes
Post by: Pex68 on July 09, 2009, 05:11:47 PM
Chris -

Based on your gas tank date code (68 20) it looks like the year and Julian date is the correct format.  They wouldn't have dated something February 0.

Our gas tanks were made one week apart (my tank date code is 68 27) on a Saturday!  January 27th, 1968 works for my 02C car, but I'm curious what the judges had to say about your tank's date code (January 20th, 1968 for a 12D car).  Did they think it was mis-stamped?  Replaced?  Or?

Paul    

I have an old GM tank on my car I bought years ago-there's no stamp on that tank for whatever reason so it was considered replaced but GM.  I guess they only stamped the production ones?
I'm not about the date code format though, my impression of their explanation was it was year & day but day could be of any month.  It didn't make sense to me then and defiantly doesn't now seeing a 37 for a day...but I have also never seen anything other than a 2 digit code in the second part either.  If it was Julian, there obviously would be 3 digit codes.  Weeks would make more sense for the code format, but that would put a lot of the posted codes after the build date of the cars-and still leave my tank WAY early so I have no idea how to decipher the code.
Title: Re: Gas tank date codes
Post by: RonM on July 09, 2009, 09:53:42 PM
Just to add input, I looked at the tank I removed from my 07D '68'. Same location as the others and stamped 68  52. Hope this helps, RonM.
Title: Re: Gas tank date codes
Post by: 1968RSZ28 on July 09, 2009, 10:08:48 PM
OK, what's CRG's input on the gas tank date code debate?  Are all of the original stamps only four digits?  What does CRG believe to be the correct way to decipher the code?    ???

Paul
Title: Re: Gas tank date codes
Post by: KurtS on July 10, 2009, 05:55:00 AM
Well, let's compile the data. I dug out my tank and added it to the mix.

12D  68 20
02C  68 27
07D  68 52

01B  21 69
01C  22 69
05A  37 69
06A  24 69

I think the code is a running week date, starting at 01 about August and incrementing throughout the model year.
More data would help. Anyone with an early 68 or early 69 car (Aug-Dec) that can add their tank date?
Title: Re: Gas tank date codes
Post by: 1968RSZ28 on July 10, 2009, 08:46:48 AM
Well, let's compile the data. I dug out my tank and added it to the mix.

12D  68 20
02C  68 27
07D  68 52

01B  21 69
01C  22 69
02D  29 69*
05A  37 69
06A  24 69

I think the code is a running week date, starting at 01 about August and incrementing throughout the model year.
More data would help. Anyone with an early 68 or early 69 car (Aug-Dec) that can add their tank date?

Thanks Kurt!  I knew you would have a theory.

I did a quick search over at Team Camaro.  "Gary L" has an 02D '69 Z/28 with a gas tank date code of 29 69.  I've added his data* above.

Paul
Title: Re: Gas tank date codes
Post by: Oregonjam on July 10, 2009, 02:01:43 PM
Added mine from 68. The running week theory seems to work out so far. This thread has been interesting. I never knew it was stamped. Anyone else not checked in yet that can confirm thier origonal tank?

Quote
Well, let's compile the data. I dug out my tank and added it to the mix.

12D  68 20
02C  68 27
07D  68 52
07D  68 53*

01B  21 69
01C  22 69
02D  29 69
05A  37 69
06A  24 69

I think the code is a running week date, starting at 01 about August and incrementing throughout the model year.
More data would help. Anyone with an early 68 or early 69 car (Aug-Dec) that can add their tank date?
Title: Re: Gas tank date codes
Post by: Oregonjam on July 10, 2009, 02:13:40 PM
Found mine right where John Z. said, front corner, drivers side.(http://i325.photobucket.com/albums/k391/TEAMDILLON/tank001.jpg)
The date appears to be 2 4 69 with the 4 stamped upside down. Anyways the car is 06A build.

I was looking through the info again and there appears to be a discrepency with  '06A  24 69'

I think it would fall in line with the other dates we are seeing if you consider the 2 being upside down instead of the 4. Then it would read 69 42 and fit with the rest of the data. After all 69 is the same either way you look at it. ;)
Title: Re: Gas tank date codes
Post by: 69 skunk on July 10, 2009, 06:10:58 PM
Found mine right where John Z. said, front corner, drivers side.(http://i325.photobucket.com/albums/k391/TEAMDILLON/tank001.jpg)
The date appears to be 2 4 69 with the 4 stamped upside down. Anyways the car is 06A build.

I was looking through the info again and there appears to be a discrepency with  '06A  24 69'

I think it would fall in line with the other dates we are seeing if you consider the 2 being upside down instead of the 4. Then it would read 69 42 and fit with the rest of the data. After all 69 is the same either way you look at it. ;)
That's my tank and I was wondering the same thing.
Title: Re: Gas tank date codes
Post by: hubleyman on July 11, 2009, 01:02:31 AM
Here goes my first attempt at this forum.....  since you were looking for an early production '69 you made me go look (never checked before).

My 10A '69 Norwood Z/28 has a gas tank code of 6  69 (very clearly stamped).  The car has approximately 40k original miles and still has the original gas tank as far as I know...

Learn something new every day !!

Thanks for the info...
Charlie

Title: Re: Gas tank date codes
Post by: KurtS on July 11, 2009, 02:50:04 AM
Thanks guys for the additional data!
Thanks Kurt!  I knew you would have a theory.
I didn't have one until I compiled the data. You forced me to come up with one. :)

I would agree the 06A tank either sat for a while or is misstamp.

Interesting. Since they had the year on the tank, they could just keep counting - higher than 52 wasn't a problem.

12D  68 20
02C  68 27
07D  68 52
07D  68 53

10A   6 69
01B  21 69
01C  22 69
02D  29 69
05A  37 69
06A  24 69
Title: Re: Gas tank date codes
Post by: 1968RSZ28 on July 11, 2009, 05:18:06 AM
Thanks guys for the additional data!
Thanks Kurt!  I knew you would have a theory.
I didn't have one until I compiled the data. You forced me to come up with one. :)

Thanks for figuring it out Kurt!

Paul 
Title: Re: Gas tank date codes
Post by: Pex68 on July 11, 2009, 05:47:49 AM
Kurt you rule!!!!  Thought it was a week but didn't make sense with the Calendar year...Production year...DUH!!!!  :D
Title: Re: Gas tank date codes
Post by: Oregonjam on July 11, 2009, 02:09:20 PM
Here is the latest list with the 06A Flipped around assuming the 2 was upside down instead. Seems to make more sense. Funny how every once in awhile a digit on a part is reversed or upside down. I never realized how common these types of issues were until reading alot of these posts.

12D  68 20
02C  68 27
07D  68 52
07D  68 53

10A   6 69
01B  21 69
01C  22 69
02D  29 69
05A  37 69
06A  42 69
Title: Re: Gas tank date codes
Post by: copo on July 12, 2009, 12:56:04 AM
Just to add my input, I looked at the tank I removed from my 69 05E, stamped 69  41.
Title: Re: Gas tank date codes
Post by: KurtS on July 12, 2009, 02:42:27 AM
It was interesting to figure out. Not a lot of data, but it was Pex's 12D data was problematic and important - the wrong calendar year for a 12D car.
I tried day combinations, day week, ignoring the 12D data, etc. Took a while to break the normal dating paradigm to come up with something that made sense. Looking back, it's a duh, ....now.... :)

12D  68 20
02C  68 27
07D  68 52
07D  68 53

10A   6 69
01B  21 69
01C  22 69
02D  29 69
05A  37 69
05E  41 69
06A  42 69
Title: Re: Gas tank date codes
Post by: tim69camaro on July 12, 2009, 02:55:26 PM
I checked mine yesterday. 69 12A with a gas tank date 16 69.
Title: Re: Gas tank date codes
Post by: 1968RSZ28 on July 12, 2009, 05:25:52 PM
I checked mine yesterday. 69 12A with a gas tank date 16 69.

Thanks Tim!  We've added your data below...

12D  68 20
02C  68 27
07D  68 52
07D  68 53

10A   6 69
12A  16 69
01B  21 69
01C  22 69
02D  29 69
05A  37 69
05E  41 69
06A  42 69

Paul
Title: Re: Gas tank date codes
Post by: tom on July 12, 2009, 10:22:31 PM
Another data point from my 02D 69: 28 69 
Title: Re: Gas tank date codes
Post by: 1968RSZ28 on July 13, 2009, 03:12:23 AM
Another data point from my 02D 69: 28 69 

Thanks Tom!  We've added your data below...

12D  68 20
02C  68 27
07D  68 52
07D  68 53

10A   6 69
12A  16 69
01B  21 69
01C  22 69
02D  28 69
02D  29 69
05A  37 69
05E  41 69
06A  42 69

Paul
Title: Re: Gas tank date codes
Post by: Buddy on July 13, 2009, 03:16:14 PM
Sorry, I am not trying to hijack this thread but does anyone know if 67's had Date Codes on the tank????

Thx
Buddy
Title: Re: Gas tank date codes
Post by: tom on July 13, 2009, 03:41:09 PM
I would try looking where they have been found on the later tanks. Mine only took about 15 minutes to get to trhough previous owners undercoating and paint. A generous shot of paint remover, followed by scraping and sanding.
Title: Re: Gas tank date codes
Post by: rare4k on July 13, 2009, 05:30:52 PM
yes 67 has date codes as well
Title: Re: Gas tank date codes
Post by: 68Zproject on July 15, 2009, 12:20:08 AM
My 05D has a 68 44.  Now, if I could just get this kind of info on my grill attachment..........
Title: Re: Gas tank date codes
Post by: camaro cat on July 19, 2009, 12:10:53 AM
The tank from my 02D car is also 29 69. I think I can get a code off a 1st week of Dec 1968 to add also.

Loren
Title: Re: Gas tank date codes
Post by: 1968RSZ28 on July 19, 2009, 03:51:02 AM
The tank from my 02D car is also 29 69. I think I can get a code off a 1st week of Dec 1968 to add also.

Thanks Loren!  We've added your data below...

12D  68 20
02C  68 27
05D  68 44
07D  68 52
07D  68 53

10A   6 69
12A  16 69
01B  21 69
01C  22 69
02D  28 69
02D  29 69
02D  29 69
04C  37 69
04C  37 69
05A  37 69
05E  41 69
06A  42 69

Let us know what you find on the 12A '68  Thanks!

Paul
Title: Re: Gas tank date codes
Post by: 1968RSZ28 on July 20, 2009, 04:54:05 AM
Thanks Kurt!  (05D  68 44)    :)

Paul
Title: Re: Gas tank date codes
Post by: KurtS on July 20, 2009, 06:59:33 AM
No problem. The power of being able to edit posts. :)
Pretty impressive data list. But no 67's or early 68's..... yet.
Title: Re: Gas tank date codes
Post by: Buddy on July 21, 2009, 10:49:52 PM
I looked at my original 67 02B tank and cannot find any date code. Are they supposed to be in the same place as 68 & 69??

Thx
Buddy
Title: Re: Gas tank date codes
Post by: Barefoot Dave on July 21, 2009, 11:16:47 PM
Both of my 04C cars have 37 69 tanks.
Title: Re: Gas tank date codes
Post by: paceme on July 23, 2009, 04:33:40 PM
9B of 68     Tank date  1  69
Title: Re: Gas tank date codes
Post by: Pex68 on July 23, 2009, 05:38:02 PM
I looked at my original 67 02B tank and cannot find any date code. Are they supposed to be in the same place as 68 & 69??

Thx
Buddy

I would think so but seems kinda funny NO ONE with a 67 has chimed in so maybe not???  I always look for silly stuff like this when I go over a really nice car just to see how "real" it is but can't say for sure because my passion is 68's so I really don't lock into memory what I see on 67's or 69's unless it's something out of the ordinary.  I do know some of the stamps can be dam near impossible to see, if you really want to see if there's anything there, try pulling a razor blade flat across the corner of the tank a FEW times, blow area off-don't wipe!, and get a flash light and shine/look from all different angles.  If the tank is still in the car a small mirror will help get better angles.  Actually just try the flashlight/mirror trick first, and use the razor blade as last resort!!!
Title: Re: Gas tank date codes
Post by: Buddy on July 23, 2009, 07:40:23 PM
The Tank is out of the car and I cleaned both rear corners top and bottom. I used lacquer thinner to clean down to bare metal and nothing. Could it be somewhere else on a 67??

CRG should be taking note of the info gathered in this thread and make a paper on it. 8)

Thx
Buddy
Title: Re: Gas tank date codes
Post by: Pex68 on July 23, 2009, 08:28:11 PM
Buddy,
FRONT drivers side facing ground as installed!
Title: Re: Gas tank date codes
Post by: Buddy on July 23, 2009, 10:36:10 PM
Sorry, I mis-spoke, I had done the 2 front corners top and bottom and nothing is there.

Thx
Buddy :-[
Title: Re: Gas tank date codes
Post by: 1968RSZ28 on July 23, 2009, 11:19:46 PM
9B of 68     Tank date  1  69

Thanks!  We've added your data below...

12D  68 20
02C  68 27
05D  68 44
07D  68 52
07D  68 53

09B   1 69
10A   6 69
12A  16 69
01B  21 69
01C  22 69
02D  28 69
02D  29 69
02D  29 69
04C  37 69
04C  37 69
05A  37 69
05E  41 69
06A  42 69

Paul
Title: Re: Gas tank date codes
Post by: asm69 on July 23, 2009, 11:56:47 PM
I wanted to send my information on my gas tank code. I'm not sure which direction to look at the code.
One way it reads 10 69 with the number 1 upside down, the other direction it reads 69 01. I have an
early Los built 69 Z with a build date of 10D 1968.

What does the tank decode to?

Pics Attached.

asm69

Title: Re: Gas tank date codes
Post by: 1968RSZ28 on July 24, 2009, 12:12:59 AM
I wanted to send my information on my gas tank code. I'm not sure which direction to look at the code.
One way it reads 10 69 with the number 1 upside down, the other direction it reads 69 01. I have an
early Los built 69 Z with a build date of 10D 1968.

What does the tank decode to?

I'd say 10 69 , it fits the pattern below...

12D  68 20
02C  68 27
05D  68 44
07D  68 52
07D  68 53

09B   1 69
10A   6 69
10D  10 69
12A  16 69
01B  21 69
01C  22 69
02D  28 69
02D  29 69
02D  29 69
04C  37 69
04C  37 69
05A  37 69
05E  41 69
06A  42 69

Paul
Title: Re: Gas tank date codes
Post by: Pex68 on July 24, 2009, 04:48:53 AM
Sorry, I mis-spoke, I had done the 2 front corners top and bottom and nothing is there.

Thx
Buddy :-[

Buddy, did you check the other corners and all along the seam?  That's the only place it could be since the stamp was like clamp it needed a flat surface to "clamp" on to.  Let us know.

So I guess we need also to get some other 67 guys to chime in here to see what's up with 67 tanks...dated or not and where?
Title: Re: Gas tank date codes
Post by: sixt9x33rs on July 24, 2009, 11:04:00 AM
My original tank is out of my car and I hunted around last night and found the numbers.

My car is a 69 Z/28 03D build date and the gas tank date code is 45 69.

My tank leaks in the right front corner of the tank. Not on a seam but through the metal itself. Weirdest thing it looks like there are a bunch of tiny holes grouped together and the gas just seeps through there. I would like to restore the tank and use one day. Does anybody know of a gas tank restoration shop?

Thanks,

Lawrence
Title: Re: Gas tank date codes
Post by: paceme on July 24, 2009, 11:24:16 AM
10A of 69     Tank date  9  70
Title: Re: Gas tank date codes
Post by: KurtS on July 24, 2009, 03:18:26 PM
Lawrence,
35 69 looks better. Else I'd say your tank has been replaced.

Steve,
Nice to see some late data! Not a huge surprise since it was almost a 1970 model, but I wasn't sure which way they would have done it.

12D  68 20
02C  68 27
05D  68 44
07D  68 52
07D  68 53

09B   1 69
10A   6 69
10D  10 69
12A  16 69
01B  21 69
01C  22 69
02D  28 69
02D  29 69
02D  29 69
03D  45 69 - replaced?
04C  37 69
04C  37 69
05A  37 69
05E  41 69
06A  42 69
10A   9 70
Title: Re: Gas tank date codes
Post by: JohnZ on July 24, 2009, 04:27:50 PM
Wouldn't surprise me to see pattern differences between NOR and LOS cars; the tanks at Norwood were made at Chevrolet-Flint Bristol Road Stamping, and the tanks for Van Nuys cars were sourced to an outside supplier in California instead of shipping rail car loads of "air" across the country. That California supplier also made the "B"-body tanks for Van Nuys and for the South Gate plant across town.
Title: Re: Gas tank date codes
Post by: asm69 on July 25, 2009, 01:41:51 PM
So it seems gas tanks were stamped for model years and not year of manufacture.
As in my case where I have a Los built 69 Z with a build date of 10D 1968.

Though the gas tank stamping is 10 69.

asm69
Title: Re: Gas tank date codes
Post by: sixt9x33rs on July 25, 2009, 05:39:57 PM
Here is my date code.

The tank does not look like it was replaced because it has under coating all over it that matched what was under the car? But of course I dont know for sure.

Thanks,
Title: Re: Gas tank date codes
Post by: rare4k on July 25, 2009, 05:41:02 PM
I justed went into my shed and pulled out the one i picked up for my 67 car the date on the tank is 52 N 6  get a pic for you all so there has to be a couple for the 67 aswell
Title: Re: Gas tank date codes
Post by: Camaro Billy on July 26, 2009, 07:39:36 PM
Here is a shot of my code on my 1969 car. It is an 11D 1968 build.
The code is 14 69  , so that fits right in with the run week / model year coding
Title: Re: Gas tank date codes
Post by: jk1969z28 on July 27, 2009, 01:14:23 AM
Here's another 06A car but is one of the last built June cars, vin 6647XX.  Tank numbers 69 45, picture attached.

Jerry K.
Title: Re: Gas tank date codes
Post by: KurtS on July 27, 2009, 02:51:26 AM
I justed went into my shed and pulled out the one i picked up for my 67 car the date on the tank is 52 N 6  get a pic for you all so there has to be a couple for the 67 aswell
Where on the tank was it stamped?
Thanks!
Title: Re: Gas tank date codes
Post by: Buddy on July 27, 2009, 01:33:08 PM
I would like to know myself, still haven't found mine. Pictures would be very nice. ;D

Thx
Buddy
Title: Re: Gas tank date codes
Post by: sixt9x33rs on July 28, 2009, 10:47:47 AM
Kurt,

I agree with you, I think mine was replaced too. Based on the dates. I guess the dealer smeared the undercoating on the tank?

Lawrence
Title: Re: Gas tank date codes
Post by: Dave69x33 on August 02, 2009, 06:06:44 PM
The code is stamped on the front RH (driver's side) corner flange of the tank.  You will need to remove any paint or rust to expose the date code.

Good Luck. 
Title: Re: Gas tank date codes
Post by: sixt9x33rs on August 03, 2009, 01:44:32 AM
here you go.
Title: Re: Gas tank date codes
Post by: JohnZ on August 03, 2009, 01:54:26 PM
The code is stamped on the front RH (driver's side) corner flange of the tank.

The RH side of the car is the passenger side, and the LH side is the driver's side; RH and LH are as viewed from the driver's position. :-)
Title: Re: Gas tank date codes
Post by: camaro cat on August 04, 2009, 04:13:33 AM
I finally took the time to to check the other tank I have access too. It is an 11D date code and the tank has a 69 51 stamped on it. I notice others have one upside down number on their tanks. It could be that the 5 and the 1 were installed backwards and should have been 69 15 which lines up better with other submitted info. On my 02D car I always thought the 29 69 meant the 29th day of 1969 which fits with a 02D build date. But that is obviously not right. My guess is it refers to the 29th week of gas tank production for 1969 production and probably started at the end of July or beginning of August 1968.

Loren
Title: Re: Gas tank date codes
Post by: Dave69x33 on August 04, 2009, 04:36:45 PM
Sorry...yes, it's the "LH" or "driver's" side of the tank.
Title: Re: Gas tank date codes
Post by: red69 on August 04, 2009, 08:51:30 PM
My 12C 69 has a tank date code of 16 69
Title: Re: Gas tank date codes
Post by: 302V8 on August 06, 2009, 02:05:01 PM
Just checked my 1968 z28 03c norwood and it is stamped on left front flange witch a 68  34    hope this helps
Title: Re: Gas tank date codes
Post by: Big_Al on August 06, 2009, 06:32:54 PM
I just got the date code off my 04A Norwood '69: 33 69.

The number seems to fit well with previous reports.

Al
Title: Re: Gas tank date codes
Post by: 1968 Z28 on August 06, 2009, 08:04:09 PM
My 1968 - 07C is dated 68 52
Title: Re: Gas tank date codes
Post by: KurtS on August 07, 2009, 03:13:26 AM
12D  68 20
02C  68 27
03C  68 34
05D  68 44
07C  68 52
07D  68 52
07D  68 53

09B   1 69
10A   6 69
10D  10 69
10D  10 69
11D  14 69
11D  15 69  (stamped 69 51)
12A  16 69
12C  16 69
01B  21 69
01C  22 69
02D  28 69
02D  29 69
02D  29 69
03D  45 69 - replaced?
04A  33 69
04C  37 69
04C  37 69
05A  37 69
05E  41 69
06A  42 69
06A  45 69
10A   9 70
Title: Re: Gas tank date codes
Post by: crobjones2 on August 16, 2009, 04:26:04 PM
Kurt
Another 06A with 45 69
I will see if my neighbor still has his original tank
Title: Re: Gas tank date codes
Post by: Buddy on August 17, 2009, 01:45:51 PM
Still do not see a date code on my 67???

When did they start date coding the tanks??

Buddy
Title: Re: Gas tank date codes
Post by: Oregonjam on August 17, 2009, 04:58:12 PM
Interesting that there are no 67s listed yet. Anyone have a 67 with a date stamp?
Title: Re: Gas tank date codes
Post by: KurtS on August 18, 2009, 02:53:52 AM
There was one 67, but no updates on the stamp location.
I justed went into my shed and pulled out the one i picked up for my 67 car the date on the tank is 52 N 6  get a pic for you all so there has to be a couple for the 67 aswell
Title: Re: Gas tank date codes
Post by: crobjones2 on August 22, 2009, 07:07:42 PM
Kurt
Another 06A with 45 69
I will see if my neighbor still has his original tank

His camaro is a 17 69 for a 11D car
Title: Re: Gas tank date codes
Post by: 1968RSZ28 on August 22, 2009, 08:37:06 PM
Kurt
Another 06A with 45 69
I will see if my neighbor still has his original tank

His camaro is a 17 69 for a 11D car

Thanks Chris!  Data added below...

12D  68 20
02C  68 27
03C  68 34
05D  68 44
07C  68 52
07D  68 52
07D  68 53

09B   1 69
10A   6 69
10D  10 69
10D  10 69
11D  14 69
11D  15 69  (stamped 69 51)
11D  17 69
12A  16 69
12C  16 69
01B  21 69
01C  22 69
02D  28 69
02D  29 69
02D  29 69
03D  45 69 - replaced?
04A  33 69
04C  37 69
04C  37 69
05A  37 69
05E  41 69
06A  42 69
06A  45 69
10A   9 70

Paul

 
Title: Re: Gas tank date codes
Post by: copo69 on September 12, 2009, 03:25:01 AM
My 03E '69 is 33 69.
Title: Re: Gas tank date codes
Post by: 1968RSZ28 on September 12, 2009, 04:12:33 PM
My 03E '69 is 33 69.

Thank you!  Data added below...

12D  68 20
02C  68 27
03C  68 34
05D  68 44
07C  68 52
07D  68 52
07D  68 53

09B   1 69
10A   6 69
10D  10 69
10D  10 69
11D  14 69
11D  15 69  (stamped 69 51)
11D  17 69
12A  16 69
12C  16 69
01B  21 69
01C  22 69
02D  28 69
02D  29 69
02D  29 69
03D  45 69 - replaced?
03E  33 69
04A  33 69
04C  37 69
04C  37 69
05A  37 69
05E  41 69
06A  42 69
06A  45 69
10A   9 70


Paul

Title: Re: Gas tank date codes
Post by: L78 steve on September 14, 2009, 07:38:04 PM
Ditto on the 04C, 37 69
Title: Re: Gas tank date codes
Post by: 1968RSZ28 on September 14, 2009, 08:10:00 PM
Ditto on the 04C, 37 69

Thanks Steve!  Data added below...

12D  68 20
02C  68 27
03C  68 34
05D  68 44
07C  68 52
07D  68 52
07D  68 53

09B   1 69
10A   6 69
10D  10 69
10D  10 69
11D  14 69
11D  15 69  (stamped 69 51)
11D  17 69
12A  16 69
12C  16 69
01B  21 69
01C  22 69
02D  28 69
02D  29 69
02D  29 69
03D  45 69 - replaced?
03E  33 69
04A  33 69
04C  37 69
04C  37 69
04C  37 69
05A  37 69
05E  41 69
06A  42 69
06A  45 69
10A   9 70


Paul
Title: Re: Gas tank date codes
Post by: Buddy on September 16, 2009, 01:19:21 PM
I guess the 67 did not have codes at this point????

 ???
Title: Re: Gas tank date codes
Post by: Pex68 on September 18, 2009, 01:55:16 AM
I guess the 67 did not have codes at this point????

I know right??  And nothing before my 12D 68 20 stamp?  I'm amazed!  So what, early early 68's didn't get them either???  Fall E-town car show next weekend, guess I'll have to wear a crappy shirt because I can already see I'll be crawling under every 67 & early 68 I see to see if there's codes  :D  Don't worry, I'll have my camera!!!
Title: Re: Gas tank date codes
Post by: 67rs/ss396 on October 15, 2009, 09:00:40 PM
Just check my 3 67's and they are as follows:

los angles 02C = 5 D 7
norwood  03B = 9 D 7
norwood  03C = 11 N 7
All were found left front bottom side at corner. I am assuming wk- shift- year
Title: Re: Gas tank date codes
Post by: sftibbs on October 15, 2009, 11:08:33 PM
More data: My 01C is 21 69.
Title: Re: Gas tank date codes
Post by: 1968RSZ28 on October 16, 2009, 03:32:42 AM
Just check my 3 67's and they are as follows:

los angles 02C = 5 D 7
norwood  03B = 9 D 7
norwood  03C = 11 N 7
All were found left front bottom side at corner. I am assuming wk- shift- year


Wow!!  Our first '67 gas tank date stamps, thanks!  Data added below...

02C   5 D 7
03B   9 D 7
03C  11 N 7

12D  68 20
02C  68 27
03C  68 34
05D  68 44
07C  68 52
07D  68 52
07D  68 53

09B   1 69
10A   6 69
10D  10 69
10D  10 69
11D  14 69
11D  15 69  (stamped 69 51)
11D  17 69
12A  16 69
12C  16 69
01B  21 69
01C  22 69
02D  28 69
02D  29 69
02D  29 69
03D  45 69 - replaced?
03E  33 69
04A  33 69
04C  37 69
04C  37 69
04C  37 69
05A  37 69
05E  41 69
06A  42 69
06A  45 69
10A   9 70


Paul

Title: Re: Gas tank date codes
Post by: 1968RSZ28 on October 16, 2009, 03:36:26 AM
More data: My 01C is 21 69.

Thanks Steve!  Data added below...


02C   5 D 7
03B   9 D 7
03C  11 N 7

12D  68 20
02C  68 27
03C  68 34
05D  68 44
07C  68 52
07D  68 52
07D  68 53

09B   1 69
10A   6 69
10D  10 69
10D  10 69
11D  14 69
11D  15 69  (stamped 69 51)
11D  17 69
12A  16 69
12C  16 69
01B  21 69
01C  21 69
01C  22 69
02D  28 69
02D  29 69
02D  29 69
03D  45 69 - replaced?
03E  33 69
04A  33 69
04C  37 69
04C  37 69
04C  37 69
05A  37 69
05E  41 69
06A  42 69
06A  45 69
10A   9 70


Paul


Title: Re: Gas tank date codes
Post by: JWC on November 10, 2009, 04:50:27 PM
One more (late to the party as usual...)

02D Norwood car.

68 32 (the 2 is stamped upside down).
Title: Re: Gas tank date codes
Post by: 1968RSZ28 on November 10, 2009, 06:41:52 PM
02D Norwood car.

68 32 (the 2 is stamped upside down).


Thanks JWC!  Data added below...


02C   5 D 7
03B   9 D 7
03C  11 N 7

12D  68 20
02C  68 27
02D  68 32
03C  68 34
05D  68 44
07C  68 52
07D  68 52
07D  68 53

09B   1 69
10A   6 69
10D  10 69
10D  10 69
11D  14 69
11D  15 69  (stamped 69 51)
11D  17 69
12A  16 69
12C  16 69
01B  21 69
01C  21 69
01C  22 69
02D  28 69
02D  29 69
02D  29 69
03D  45 69 - replaced?
03E  33 69
04A  33 69
04C  37 69
04C  37 69
04C  37 69
05A  37 69
05E  41 69
06A  42 69
06A  45 69
10A   9 70


Paul
Title: Re: Gas tank date codes
Post by: rare4k on November 12, 2009, 04:30:06 AM
here the one i was talking about a very early 67 tank right were the others are found
Title: Re: Gas tank date codes
Post by: hotz on November 16, 2009, 01:25:53 AM
my car is an 10C car with 4 69 stamped on the tank. Sorry so late.
Title: Re: Gas tank date codes
Post by: 1968RSZ28 on November 16, 2009, 01:47:08 AM
my car is an 10C car with 4 69 stamped on the tank. Sorry so late.

Thanks hotz!  Data added below...


02C   5 D 7
03B   9 D 7
03C  11 N 7

12D  68 20
02C  68 27
02D  68 32
03C  68 34
05D  68 44
07C  68 52
07D  68 52
07D  68 53

09B   1 69
10A   6 69
10C   4 69
10D  10 69
10D  10 69
11D  14 69
11D  15 69  (stamped 69 51)
11D  17 69
12A  16 69
12C  16 69
01B  21 69
01C  21 69
01C  22 69
02D  28 69
02D  29 69
02D  29 69
03D  45 69 - replaced?
03E  33 69
04A  33 69
04C  37 69
04C  37 69
04C  37 69
05A  37 69
05E  41 69
06A  42 69
06A  45 69
10A   9 70


Paul
 
 
 
 
Title: Re: Gas tank date codes
Post by: HOT3O2 on November 20, 2009, 11:50:38 PM
How about one more. I have a 12B car with 17 69 on the tank.
Title: Re: Gas tank date codes
Post by: 1968RSZ28 on November 21, 2009, 02:41:02 AM
How about one more. I have a 12B car with 17 69 on the tank.

Well.... O.K.  Thanks Hot302!  Data added below...


02C   5 D 7
03B   9 D 7
03C  11 N 7

12D  68 20
02C  68 27
02D  68 32
03C  68 34
05D  68 44
07C  68 52
07D  68 52
07D  68 53

09B   1 69
10A   6 69
10C   4 69
10D  10 69
10D  10 69
11D  14 69
11D  15 69  (stamped 69 51)
11D  17 69
12A  16 69
12B  17 69
12C  16 69
01B  21 69
01C  21 69
01C  22 69
02D  28 69
02D  29 69
02D  29 69
03D  45 69 - replaced?
03E  33 69
04A  33 69
04C  37 69
04C  37 69
04C  37 69
05A  37 69
05E  41 69
06A  42 69
06A  45 69
10A   9 70


Paul
Title: Re: Gas tank date codes
Post by: ChrisM on January 07, 2010, 04:10:37 PM
I have two, both are for 68 model year.

Los 10E car - 7 5 N  (7 may be a 2 and 5 is upside down)

Nor 02E car - 68 32 (2 is upside down)

I believe both these tanks to be original to the car.  I have owned the Los 10E car since almost 25 years.
Title: Re: Gas tank date codes
Post by: 1968RSZ28 on January 07, 2010, 06:10:44 PM
I have two, both are for 68 model year.

Los 10E car - 7 5 N  (7 may be a 2 and 5 is upside down)

Nor 02E car - 68 32 (2 is upside down)

I believe both these tanks to be original to the car.  I have owned the Los 10E car since almost 25 years.

Thanks Chris!  Data added below...


02C   5 D 7
03B   9 D 7
03C  11 N 7

10E  7 5 N  (7 may be a 2 and 5 is upside down)
12D  68 20
02C  68 27
02D  68 32
02E  68 32
03C  68 34
05D  68 44
07C  68 52
07D  68 52
07D  68 53

09B   1 69
10A   6 69
10C   4 69
10D  10 69
10D  10 69
11D  14 69
11D  15 69  (stamped 69 51)
11D  17 69
12A  16 69
12B  17 69
12C  16 69
01B  21 69
01C  21 69
01C  22 69
02D  28 69
02D  29 69
02D  29 69
03D  45 69 - replaced?
03E  33 69
04A  33 69
04C  37 69
04C  37 69
04C  37 69
05A  37 69
05E  41 69
06A  42 69
06A  45 69
10A   9 70


Paul
Title: Re: Gas tank date codes
Post by: 68rs327conv on January 09, 2010, 10:05:25 PM
My 01C Norwood 68 RS Vert has 68 19

Mike
Title: Re: Gas tank date codes
Post by: 1968RSZ28 on January 09, 2010, 10:17:39 PM
My 01C Norwood 68 RS Vert has 68 19

Mike

Thanks Mike!  Data added below...


02C   5 D 7
03B   9 D 7
03C  11 N 7

10E  7 5 N  (7 may be a 2 and 5 is upside down)
12D  68 20
01C  68 19
02C  68 27
02D  68 32
02E  68 32
03C  68 34
05D  68 44
07C  68 52
07D  68 52
07D  68 53

09B   1 69
10A   6 69
10C   4 69
10D  10 69
10D  10 69
11D  14 69
11D  15 69  (stamped 69 51)
11D  17 69
12A  16 69
12B  17 69
12C  16 69
01B  21 69
01C  21 69
01C  22 69
02D  28 69
02D  29 69
02D  29 69
03D  45 69 - replaced?
03E  33 69
04A  33 69
04C  37 69
04C  37 69
04C  37 69
05A  37 69
05E  41 69
06A  42 69
06A  45 69
10A   9 70


Paul
Title: Re: Gas tank date codes
Post by: LAWDOG on January 22, 2010, 03:59:36 AM
I have a 1969 Nor.  08A  Tank is stamped  1 70  Does that seem right?
Title: Re: Gas tank date codes
Post by: 1968RSZ28 on January 22, 2010, 04:08:46 AM
I have a 1969 Nor.  08A  Tank is stamped  1 70  Does that seem right?

Yes, that works for me.  Thanks LAWDOG!  Data added below...


02C   5 D 7
03B   9 D 7
03C  11 N 7

10E  7 5 N  (7 may be a 2 and 5 is upside down)
12D  68 20
01C  68 19
02C  68 27
02D  68 32
02E  68 32
03C  68 34
05D  68 44
07C  68 52
07D  68 52
07D  68 53

09B   1 69
10A   6 69
10C   4 69
10D  10 69
10D  10 69
11D  14 69
11D  15 69  (stamped 69 51)
11D  17 69
12A  16 69
12B  17 69
12C  16 69
01B  21 69
01C  21 69
01C  22 69
02D  28 69
02D  29 69
02D  29 69
03D  45 69 - replaced?
03E  33 69
04A  33 69
04C  37 69
04C  37 69
04C  37 69
05A  37 69
05E  41 69
06A  42 69
06A  45 69
08A   1 70
10A   9 70


Paul


Title: Re: Gas tank date codes
Post by: Boston14 on February 02, 2010, 12:41:46 AM
Norwood 1969 RS/SS Conv. 11D (68) tank stamped 16 69
Title: Re: Gas tank date codes
Post by: MDSS396 on February 02, 2010, 04:20:35 AM
More data: Norwood 1969 X-22; 02D; tank stamp 29 69

Gas tank matches the build date of my car.  This could be the clue I have been searching for! The sending unit has single 3/8 fuel line. I believe only the L78 ran that fuel line. So if that is the original tank and sending unit - would it be to far fetched to think my car had an L78 in it from the factory?

Currently writing letters to the previous owners as well as records request from OH to get more history.

Incredible forum - just discovered it this past weekend. Learned so much just in the past couple days of reading...

Title: Re: Gas tank date codes
Post by: 1968RSZ28 on February 02, 2010, 06:46:20 AM
Norwood 1969 RS/SS Conv. 11D (68) tank stamped 16 69

Norwood 1969 X-22; 02D; tank stamp 29 69

Thanks guys!  Data added below...


02C   5 D 7
03B   9 D 7
03C  11 N 7

10E  7 5 N  (7 may be a 2 and 5 is upside down)
12D  68 20
01C  68 19
02C  68 27
02D  68 32
02E  68 32
03C  68 34
05D  68 44
07C  68 52
07D  68 52
07D  68 53

09B   1 69
10A   6 69
10C   4 69
10D  10 69
10D  10 69
11D  14 69
11D  15 69  (stamped 69 51)
11D  16 69
11D  17 69
12A  16 69
12B  17 69
12C  16 69
01B  21 69
01C  21 69
01C  22 69
02D  28 69
02D  29 69
02D  29 69
02D  29 69
03D  45 69 - replaced?
03E  33 69
04A  33 69
04C  37 69
04C  37 69
04C  37 69
05A  37 69
05E  41 69
06A  42 69
06A  45 69
08A   1 70
10A   9 70


Paul


Title: Re: Gas tank date codes
Post by: jacmac on February 02, 2010, 11:59:30 PM
Just found mine same as many others. Norwood Z10  04C  37  69
Title: Re: Gas tank date codes
Post by: L22K19 on March 09, 2010, 10:45:30 AM
My 02A 67 has 5 N 7 on the lower edge of LHF corner
Title: Re: Gas tank date codes
Post by: pjbizjak on March 09, 2010, 05:18:45 PM
OK OK OK OK I think we have enough data to decode tank numbers. Aug 1 of production year was week 01 and Last week of July would be 52 or 53!
Title: Re: Gas tank date codes
Post by: 1968RSZ28 on March 09, 2010, 07:06:01 PM
My 02A 67 has 5 N 7 on the lower edge of LHF corner

Thanks Alastair!  Data added below...

02A   5 N 7
02C   5 D 7
03B   9 D 7
03C  11 N 7

10E  7 5 N  (7 may be a 2 and 5 is upside down)
12D  68 20
01C  68 19
02C  68 27
02D  68 32
02E  68 32
03C  68 34
05D  68 44
07C  68 52
07D  68 52
07D  68 53

09B   1 69
10A   6 69
10C   4 69
10D  10 69
10D  10 69
11D  14 69
11D  15 69  (stamped 69 51)
11D  16 69
11D  17 69
12A  16 69
12B  17 69
12C  16 69
01B  21 69
01C  21 69
01C  22 69
02D  28 69
02D  29 69
02D  29 69
02D  29 69
03D  45 69 - replaced?
03E  33 69
04A  33 69
04C  37 69
04C  37 69
04C  37 69
04C  37 69
05A  37 69
05E  41 69
06A  42 69
06A  45 69
08A   1 70
10A   9 70


Paul
Title: Re: Gas tank date codes
Post by: 1968RSZ28 on March 09, 2010, 07:11:02 PM
OK OK OK OK I think we have enough data to decode tank numbers. Aug 1 of production year was week 01 and Last week of July would be 52 or 53!

I disagree, the more data the better.  Especially for the '67s.    :)

Paul 
Title: Re: Gas tank date codes
Post by: tom on March 09, 2010, 07:20:08 PM
Would be nice to narrow down the change in date formats as well. Can never know too much.
Title: Re: Gas tank date codes
Post by: Arch Stanton on March 09, 2010, 11:48:10 PM
Just found this thread....
My 04D LOS '67 just has:
5  D
Quite clear stamping. Used wire brush too.
 ???
Title: Re: Gas tank date codes
Post by: 1968RSZ28 on March 10, 2010, 06:25:21 AM
Just found this thread....
My 04D LOS '67 just has:
5  D
Quite clear stamping. Used wire brush too.
 ???

Thanks Arch!  Data added below...

02A   5 N 7
02C   5 D 7
03B   9 D 7
03C  11 N 7
04D   5 D

10E  7 5 N  (7 may be a 2 and 5 is upside down)
12D  68 20
01C  68 19
02C  68 27
02D  68 32
02E  68 32
03C  68 34
05D  68 44
07C  68 52
07D  68 52
07D  68 53

09B   1 69
10A   6 69
10C   4 69
10D  10 69
10D  10 69
11D  14 69
11D  15 69  (stamped 69 51)
11D  16 69
11D  17 69
12A  16 69
12B  17 69
12C  16 69
01B  21 69
01C  21 69
01C  22 69
02D  28 69
02D  29 69
02D  29 69
02D  29 69
03D  45 69 - replaced?
03E  33 69
04A  33 69
04C  37 69
04C  37 69
04C  37 69
04C  37 69
05A  37 69
05E  41 69
06A  42 69
06A  45 69
08A   1 70
10A   9 70


Paul
Title: Re: Gas tank date codes
Post by: L22K19 on March 10, 2010, 11:45:56 AM
Would be nice to narrow down the change in date formats as well. Can never know too much.

I completely agree. Having more data can only help to educate everybody. You never know there could be exceptions to the rule/norm and we will only ever find out by continually researching.

Keep up the brilliant job.

Alastair
Title: Re: Gas tank date codes
Post by: paceme on April 30, 2010, 05:38:10 PM
09A (69)  5 70
Title: Re: Gas tank date codes
Post by: rare4k on June 28, 2010, 04:01:20 PM
52 N 6 for a  early 67 car
Title: Re: Gas tank date codes
Post by: pjbizjak on July 20, 2010, 08:46:02 PM
Just pulled my 68 Z/28 04A gas tank out of storage and found the date code, it is 68 37! Please add to the list, thanks.
Title: Re: Gas tank date codes
Post by: 69Z28 on September 09, 2010, 01:21:33 AM
Found this post so I am adding my date code as well. Dropped tank this past weekend and found 41 69 on my 06A Z28.
Title: Re: Gas tank date codes
Post by: KurtS on September 13, 2010, 03:30:49 PM
52 N 6 for a  early 67 car
What's the production month? Thanks!
Title: Re: Gas tank date codes
Post by: tmodel66 on September 26, 2010, 05:48:24 PM
I was looking thru the data and saw no 07A '69.   So here is one.  07A  48   69
Title: Re: Gas tank date codes
Post by: edmarinko on November 22, 2010, 06:31:23 AM
Hi. I'm the "new kid on the small block" with an early 69 rs/ss vert. Build date 09B. my tank also shows 1 69. If you would load me up here is my info: TRIM TAG 69 12467N106966 TRIM712  72B  09B  VIN# 124679N508233  partial hidden vin cowl 9N508233 fender run # 33 By the way my passenger window glass is tinted date coded and has the"astro vent". I'm going full frame off and as I do so I will be picking up all codes and keeping records. You guys are aces and this forum is superb. Thanks ! ED
Title: Re: Gas tank date codes
Post by: KurtS on November 22, 2010, 03:18:49 PM
Ed,
Thanks. The one thing that stands out is the Astro Vent glass. Are you sure that's not a sticker? What's the date?

Data compiled below. Looks good, though more 67 and early 68 data would help.

??   52N6
02A   5 N 7
02C   5 D 7
03B   9 D 7
03C  11 N 7
04D   5 D

10E  7 5 N  (7 may be a 2 and 5 is upside down)
12D  68 20
01C  68 19
02C  68 27
02D  68 32
02E  68 32
03C  68 34
04A  68 37
05D  68 44
07C  68 52
07D  68 52
07D  68 53

09B   1 69
09B   1 69
10A   6 69
10C   4 69
10D  10 69
10D  10 69
11D  14 69
11D  15 69  (stamped 69 51)
11D  16 69
11D  17 69
12A  16 69
12B  17 69
12C  16 69
01B  21 69
01C  21 69
01C  22 69
02D  28 69
02D  29 69
02D  29 69
02D  29 69
03D  45 69 - replaced?
03E  33 69
04A  33 69
04C  37 69
04C  37 69
04C  37 69
04C  37 69
05A  37 69
05E  41 69
06A  41 69
06A  42 69
06A  45 69
07A  48 69
08A   1 70
09A   5 70
10A   9 70
Title: Re: Gas tank date codes
Post by: 67rs/ss396 on June 12, 2011, 01:01:18 PM
Here's another 67.

LOS 05C 16 D 7
Title: Re: Gas tank date codes
Post by: MyRed67 on June 27, 2011, 05:57:09 AM
  My 11A - 66 LOS built coupe has 40 6N  right on the bottom of the Drivers corner.  This 40 would be correct for actual Calendar week, but not with the theory that Aug. 1 st. being week 1.  And wonder why the N is at the end.   I'm attaching a pic.
Title: Re: Gas tank date codes
Post by: KurtS on June 29, 2011, 05:14:47 AM
Thanks guys! So it looks like 67 has a calendar week code. 16 D 7 would be the 16th week of 67, day shift. 40 6N would be 40th week of 66, night shift.
The format changed in 68 and 69 to have the week counted from the beginning of the model year.

<edit - data moved to bottom post >
Title: Re: Gas tank date codes
Post by: 1968RSZ28 on June 29, 2011, 05:42:53 PM
Nice job, Kurt the Code Cracker!    :)

Paul
Title: Re: Gas tank date codes
Post by: 69Z28-RS on November 14, 2011, 05:36:43 PM
I checked mine last night.   I've an original 09C Z28....   
The gas tank code is  5  70 .    I was thinking it must have been repllaced before I purchased it in 1976, if it wasn't made until 1970??    but I notice several other 08 and 09 cars with 70 dates. 

So how does this code work for the extended-run late '69 cars??
Title: Re: Gas tank date codes
Post by: 1968RSZ28 on November 14, 2011, 07:19:12 PM
I checked mine last night.   I've an original 09C Z28....   
The gas tank code is  5  70 .    I was thinking it must have been repllaced before I purchased it in 1976, if it wasn't made until 1970??    but I notice several other 08 and 09 cars with 70 dates. 

So how does this code work for the extended-run late '69 cars??

It still uses the '68-'69 format, but begins 1 70 when the '69 model year should have ended but was extended because the '70 Camaro was not ready for release.
Your gas tank was built in the fifth week of the 1970 model year and IMO is original to your car.

Paul
Title: Re: Gas tank date codes
Post by: Mike S on November 15, 2011, 02:39:57 AM
Hello all,

 I'm new here and just a lurker learning after having my car sit for almost 25 years garaged and decided to get back into this. I checked on my (what you now call a survivor car) 67 SS/RS 396 LOS car I bought in 1980 from the original owner and see a 4N7 on the gas tank. The body tag is 04B. I see the tank was sprayed black and I thought the owner did that but I read somewhere recently that LOS Camaros had black tanks.

Regards,
Mike
Title: Re: Gas tank date codes
Post by: MyRed67 on November 15, 2011, 06:21:52 AM
>>>>>67-Z27;
   My tank is the first 67 on the list(40 6D) with the pic. above  11A build LOS coupe, there was no paint on my tank.
Title: Re: Gas tank date codes
Post by: KurtS on November 15, 2011, 07:39:47 AM
Mike, I've seen other LOS tanks with blackout on them. I think there's a pic showing the plant painting the tank.
Title: Re: Gas tank date codes
Post by: Mike S on November 16, 2011, 12:05:55 AM
>>>>>67-Z27;
   My tank is the first 67 on the list(40 6D) with the pic. above  11A build LOS coupe, there was no paint on my tank.

I do see what appears to be black on the left side of your posted image. Could that be what remains of the paint if your tank was painted? I wonder of early LOS Camaro tanks were painted.

Mike
Title: Re: Gas tank date codes
Post by: MyRed67 on November 16, 2011, 05:05:21 AM
>>>67-Z27;
  You are right, I went back out and dug out that Tank.  As you will see it has a bad dent in the Pass. front corner, I was trying to get out, with no luck.  I also found a small leak in the process.  So I am thinking of replacing that Tank, too bad!!!!
  It does have Black paint, just on the bottom, and it looks to have been "brushed" on.(and after the straps were in place)   I guess I had just considered it a "backyard" detail job.  Sorry!  I am attaching a pic.!
Title: Re: Gas tank date codes
Post by: 69Z28freak on November 16, 2011, 11:30:45 AM
I have an original tank in my car and it is covered with a really thick coat of dealer installed undercoating. Its a Canadian car with the undercoating option on the options sheet. Should I remove the undercoating or keep it that way? I am not crazy about the look. It is just a 6 banger car. I would like to have a nice clean tank as the cars has just been painted. I have a new tank I can install, but is there any point keeping the original and does anyone care if this car retains its original tank. I was thinking of saving all of the orginal parts since this car is very original currently. Pretty well everthing for the most part is original except tires, paint, front windshield, some hoses and hose clamps etc.
Title: Re: Gas tank date codes
Post by: LVN 67 on November 18, 2011, 08:43:37 PM
The tank on our 67 2E L-35 coupe reads 7 D 6  It's a Norwood car. Having trouble loading a picture,will keep on trying.
Title: Re: Gas tank date codes
Post by: MyRed67 on November 19, 2011, 01:48:45 AM
Per my last pic.;
  Is that the way it was done at the factory?  It looks to be a thicker paint brushed on?  After the tank and straps were in place?
Title: Re: Gas tank date codes
Post by: LVN 67 on November 22, 2011, 01:29:52 AM
Here is the photo of our gas tank. Thank goodness for Grandchildren and their unlimited computer skills.   :)
Title: Re: Gas tank date codes
Post by: Mike S on November 22, 2011, 02:45:31 AM
Per my last pic.;
  Is that the way it was done at the factory?  It looks to be a thicker paint brushed on?  After the tank and straps were in place?

It looks like my tank was sprayed with the straps on. The bottom is fully covered along with the the upper side above the seams.

Mike
Title: Re: Gas tank date codes
Post by: vtfb68 on December 04, 2011, 02:20:45 AM
More data,
   1968 05C LA car:    68 42
       Victor
Title: Re: Gas tank date codes
Post by: KurtS on December 05, 2011, 07:28:39 AM
Updated compilation. 67 has a calendar week code. 16 D 7 would be the 16th week of 67, day shift. 40 6N would be 40th week of 66, night shift.
The format changed in 68 and 69 to have the week counted from the beginning of the model year. The extended 69 year used tanks dated for the 70 model year.

11A  40 6N
??    52 N 6
02A   5 N 7
02C   5 D 7
02E   6 D 7  (stamped 7D6)
03B   9 D 7
03C 11 N 7
04B   4 N 7
04D   5 D
05C  16 D 7

10E  7 5 N  (7 may be a 2 and 5 is upside down)
12D  68 20
01C  68 19
02C  68 27
02D  68 32
02E  68 32
03C  68 34
04A  68 37
05C  68 42
05D  68 44
07C  68 52
07D  68 52
07D  68 53

09B   1 69
09B   1 69
10A   6 69
10C   4 69
10D  10 69
10D  10 69
11D  14 69
11D  15 69  (stamped 69 51)
11D  16 69
11D  17 69
12A  16 69
12B  17 69
12C  16 69
01B  21 69
01C  21 69
01C  22 69
02D  28 69
02D  29 69
02D  29 69
02D  29 69
03D  45 69 - replaced?
03E  33 69
04A  33 69
04C  37 69
04C  37 69
04C  37 69
04C  37 69
05A  37 69
05E  41 69
06A  41 69
06A  42 69
06A  45 69
07A  48 69
08A   1 70
09A   5 70
09C   5 70
10A   9 70
Title: Re: Gas tank date codes
Post by: GaryL on February 12, 2012, 11:37:59 PM
Geting resdy to toss my original tank. It is 29 69 for my 02D Z/28. Sure wish they could be made to look good again.
Title: Re: Gas tank date codes
Post by: flyingskibiker on March 11, 2012, 05:39:01 AM
68 ~11C (no TT) = 68 17

(http://i63.photobucket.com/albums/h140/hmbrew4u/Camaro%20Odd%20Balls/GasTankDateCode1sm.jpg)
Title: Re: Gas tank date codes
Post by: 69Z28-RS on March 11, 2012, 07:43:55 AM
GaryL...  what is so wrong with you tank that it cannot be saved?    You can chemically clean and then seal the interior.   you can bead blast, clean and then spray the outside with galvanie paint.. you can replace the sending unit, filter sock, etc... so why can't you 'make it look good' again?

Gary / 69Z28-RS .. (whose original  tank now has a 'drain'  - where I replaced a 'hole' with a screw in seal').. :)  ..  and actually, I didn't have to beadblast mine; I just used fine abrasive to clean the outside, then clear coated it...
Title: Re: Gas tank date codes
Post by: LM69Z28 on March 15, 2012, 05:46:52 AM
Our 02A X33 car's tank is dated 2 upside down 5 69. Not sure if I added this info. previously or not but did not see it in Kurt's latest list.
Cheers
LM69Z28 ;)
Title: Re: Gas tank date codes
Post by: Hans L on March 16, 2012, 02:41:56 AM
Here's the date(s) from the gas tank on my 04B Van Nuys '69 Camaro RS Z28:

Fuel Tank:  33 69
Fuel Sending Unit Lock:  31 9

Unfortunately, in order to save the chassis broadcast copy, I ruined the tank (had to cut it out).  

Title: Re: Gas tank date codes
Post by: KurtS on March 17, 2012, 03:33:52 AM
Thanks guys!
Updated compilation. 67 has a calendar week code. 16 D 7 would be the 16th week of 67, day shift. 40 6N would be 40th week of 66, night shift.
The format changed in 68 and 69 to have the week counted from the beginning of the model year. The extended 69 model year used tanks dated for the 70 model year.

11A  40 6N
??    52 N 6
02A   5 N 7
02C   5 D 7
02E   6 D 7  (stamped 7D6)
03B   9 D 7
03C 11 N 7
04B   4 N 7
04D   5 D
05C  16 D 7

10E  7 5 N  (7 may be a 2 and 5 is upside down)
11C  68 17
12D  68 20
01C  68 19
02C  68 27
02D  68 32
02E  68 32
03C  68 34
04A  68 37
05C  68 42
05D  68 44
07C  68 52
07D  68 52
07D  68 53

09B   1 69
09B   1 69
10A   6 69
10C   4 69
10D  10 69
10D  10 69
11D  14 69
11D  15 69  (stamped 69 51)
11D  16 69
11D  17 69
12A  16 69
12B  17 69
12C  16 69
01B  21 69
01C  21 69
01C  22 69
02A  25 69  (upside down 5)
02D  28 69
02D  29 69
02D  29 69
02D  29 69
02D  29 69
03D  45 69 - replaced?
03E  33 69
04A  33 69
04B  33 69
04C  37 69
04C  37 69
04C  37 69
04C  37 69
05A  37 69
05E  41 69
06A  41 69
06A  42 69
06A  45 69
07A  48 69
08A   1 70
09A   5 70
09C   5 70
10A   9 70
Title: Re: Gas tank date codes
Post by: OG69Z on March 23, 2012, 03:37:09 AM
Fuel Tank on my 1969 Z/28. 03B Van Nuys
(http://i1223.photobucket.com/albums/dd512/1969Muscle/FuelTank-1.jpg)
Title: Re: Gas tank date codes
Post by: Gramps69Z on April 24, 2012, 10:58:11 PM
Found mine today.
10E   12 70
LMK if you need a picture.
Title: Re: Gas tank date codes
Post by: BULLITT65 on May 04, 2012, 08:30:33 AM
Took a wire brush to my tank.
08C car, and the tank is dated 2  70

thought my tank had been replaced until I got to about page 5 of this thread...lol
thanks guys
Title: Re: Gas tank date codes
Post by: 67pacer on May 06, 2012, 07:32:22 PM
My 02C Van Nuys Z/28   26 69
Title: Re: Gas tank date codes
Post by: KurtS on May 17, 2012, 03:01:52 AM
I added a summary to the first post of this thread. :)
Here's the updated compilation. 67 has a calendar week code. 16 D 7 would be the 16th week of 67, day shift. 40 6N would be 40th week of 66, night shift.
The format changed in 68 and 69 to have the week counted from the beginning of the model year. The extended 69 model year used tanks dated for the 70 model year.

11A  40 6N
??    52 N 6
02A   5 N 7
02C   5 D 7
02E   6 D 7  (stamped 7D6)
03B   9 D 7
03C 11 N 7
04B   4 N 7
04D   5 D
05C  16 D 7

10E  7 5 N  (7 may be a 2 and 5 is upside down)
11C  68 17
12D  68 20
01C  68 19
02C  68 27
02D  68 32
02E  68 32
03C  68 34
04A  68 37
05C  68 42
05D  68 44
07C  68 52
07D  68 52
07D  68 53

09B   1 69
09B   1 69
10A   6 69
10C   4 69
10D  10 69
10D  10 69
11D  14 69
11D  15 69  (stamped 69 51)
11D  16 69
11D  17 69
12A  16 69
12B  17 69
12C  16 69
01B  21 69
01C  21 69
01C  22 69
02A  25 69  (upside down 5)
02C  26 69
02D  28 69
02D  29 69
02D  29 69
02D  29 69
02D  29 69
03B  29 69
03D  45 69 - replaced?
03E  33 69
04A  33 69
04B  33 69
04C  37 69
04C  37 69
04C  37 69
04C  37 69
05A  37 69
05E  41 69
06A  41 69
06A  42 69
06A  45 69
07A  48 69
08A   1 70
08C   2 70
09A   5 70
09C   5 70
10A   9 70
10E  12 70
Title: Re: Gas tank date codes
Post by: ko-lek-tor on January 14, 2013, 06:06:15 AM
my 12b Nor is 17 69
Title: Re: Gas tank date codes
Post by: BULLITT65 on January 14, 2013, 06:08:11 AM
looks like it would be the original, congrats and welcome to the CRG!
Title: Re: Gas tank date codes
Post by: 69ndpce on January 25, 2013, 01:26:19 AM
My 69 was built 03D in Van Nuys.    33 69
Title: Re: Gas tank date codes
Post by: Burntbunz on February 10, 2013, 05:04:45 AM
Mine is a VN 03D stamped 33 69
Title: Re: Gas tank date codes
Post by: NoYenko on February 21, 2013, 01:42:42 AM
Don't think I added mine. Early 1969 Nor 11A stamped (12-69).  Barley readable. George
Title: Re: Gas tank date codes
Post by: KurtS on February 21, 2013, 11:01:43 PM
Here's the updated compilation. 67 has a calendar week code. 16 D 7 would be the 16th week of 67, day shift. 40 6N would be 40th week of 66, night shift.
The format changed in 68 and 69 to have the week counted from the beginning of the model year. The extended 69 model year used tanks dated for the 70 model year.

11A  40 6N
??    52 N 6
02A   5 N 7
02C   5 D 7
02E   6 D 7  (stamped 7D6)
03B   9 D 7
03C 11 N 7
04B   4 N 7
04D   5 D
05C  16 D 7

10E  7 5 N  (7 may be a 2 and 5 is upside down)
11C  68 17
12D  68 20
01C  68 19
02C  68 27
02D  68 32
02E  68 32
03C  68 34
04A  68 37
05C  68 42
05D  68 44
07C  68 52
07D  68 52
07D  68 53

09B   1 69
09B   1 69
10A   6 69
10C   4 69
10D  10 69
10D  10 69
11A  12 69
11D  14 69
11D  15 69  (stamped 69 51)
11D  16 69
11D  17 69
12A  16 69
12B  17 69
12B  17 69
12C  16 69
01B  21 69
01C  21 69
01C  22 69
02A  25 69  (upside down 5)
02C  26 69
02D  28 69
02D  29 69
02D  29 69
02D  29 69
02D  29 69
03B  29 69
03D  45 69 - replaced?
03D  33 69
03D  33 69
03E  33 69
04A  33 69
04B  33 69
04C  37 69
04C  37 69
04C  37 69
04C  37 69
05A  37 69
05E  41 69
06A  41 69
06A  42 69
06A  45 69
07A  48 69
08A   1 70
08C   2 70
09A   5 70
09C   5 70
10A   9 70
10E  12 70

Any other 67 data?
Title: Re: Gas tank date codes
Post by: 69Z28freak on March 04, 2013, 03:04:03 AM
I have an original tank in my car and it is covered with a really thick coat of dealer installed undercoating. Its a Canadian car with the undercoating option on the options sheet. Should I remove the undercoating or keep it that way? I am not crazy about the look. It is just a 6 banger car. I would like to have a nice clean tank as the cars has just been painted. I have a new tank I can install, but is there any point keeping the original and does anyone care if this car retains its original tank. I was thinking of saving all of the orginal parts since this car is very original currently. Pretty well everthing for the most part is original except tires, paint, front windshield, some hoses and hose clamps etc.

Here is a Pic of my tank. Car is 11C. It does not seem to match the tank chart.

(http://i65.photobucket.com/albums/h219/69z28freak/69%20Camaro%20Phase%202%20Part%202/IMG_7177_zps196292e0.jpg)
Title: Re: Gas tank date codes
Post by: KurtS on March 04, 2013, 05:09:42 AM
I see 11 69 - fits well. That one digit it barely stamped.....
Title: Re: Gas tank date codes
Post by: 69Z28freak on March 04, 2013, 07:23:50 AM
I see 11 69 - fits well. That one digit it barely stamped.....

Thanks Kurt, that would explain the mystery. I could not make out the first 1 at all.
Title: Re: Gas tank date codes
Post by: sixt9x33rs on June 25, 2013, 03:02:36 AM
My 12C Norwood car has a tank code of 16-69
Title: Re: Gas tank date codes
Post by: janobyte on June 30, 2013, 07:54:20 PM
My  04D   Norwood 68 Z   
Tank # 68  41
Shot pics of tank, straps today if anyone is interested. 
Title: Re: Gas tank date codes
Post by: janobyte on June 30, 2013, 08:11:03 PM
Bigger pic + #10 mark on tank ( # 10 all over car under body panels, same # in wheels)
Title: Re: Gas tank date codes
Post by: Ue on November 09, 2013, 10:24:41 AM
Here's mine from my LOS 68 SS (possibly SS/RS?)
Build - 11B
Tank code- 68  15

FYI.
I've re-painted the tank silver now, with black straps, but when I paint stripped it, the tank appeared to have (under a few coats of overspray) original factory black paint.
Title: Re: Gas tank date codes
Post by: ZLP955 on November 10, 2013, 05:36:02 AM
Just pulled the tank from an 01B of 1969 VN coupe and it's stamped 21 69.
Title: Re: Gas tank date codes
Post by: triumph675 on December 29, 2013, 05:23:38 AM
Here's mine from a 1968 Norwood... Build date- 05C. Gas tank code is 68  43

(http://i1087.photobucket.com/albums/j478/triumph6753/NorthwestUmatilla-20131215-00934.jpg) (http://s1087.photobucket.com/user/triumph6753/media/NorthwestUmatilla-20131215-00934.jpg.html)

(http://i1087.photobucket.com/albums/j478/triumph6753/GasTankStamp.jpg) (http://s1087.photobucket.com/user/triumph6753/media/GasTankStamp.jpg.html)
Title: Re: Gas tank date codes
Post by: triumph675 on December 29, 2013, 05:43:10 AM
(http://i1087.photobucket.com/albums/j478/triumph6753/NorthwestUmatilla-20131218-00947.jpg) (http://s1087.photobucket.com/user/triumph6753/media/NorthwestUmatilla-20131218-00947.jpg.html)
Title: Re: Gas tank date codes
Post by: KurtS on December 30, 2013, 07:38:11 PM
Here's the updated compilation. 67 has a calendar week code. 16 D 7 would be the 16th week of 67, day shift. 40 6N would be 40th week of 66, night shift.
The format changed in 68 and 69 to have the week counted from the beginning of the model year. The extended 69 model year used tanks dated for the 70 model year.
LOS and NOR data is intermixed and shows the same pattern.

11A  40 6N
??    52 N 6
02A   5 N 7
02C   5 D 7
02E   6 D 7  (stamped 7D6)
03B   9 D 7
03C 11 N 7
04B   4 N 7
04D   5 D
05C  16 D 7

10E  7 5 N  (7 may be a 2 and 5 is upside down)
11B  68 15
11C  68 17
12D  68 20
01C  68 19
02C  68 27
02D  68 32
02E  68 32
03C  68 34
04A  68 37
04D  68 41
05C  68 42
05C  68 43
05D  68 44
07C  68 52
07D  68 52
07D  68 53

09B   1 69
09B   1 69
10A   6 69
10C   4 69
10D  10 69
10D  10 69
11A  12 69
11C  11 69
11D  14 69
11D  15 69  (stamped 69 51)
11D  16 69
11D  17 69
12A  16 69
12B  17 69
12B  17 69
12C  16 69
12C  16 69
01B  21 69
01B  21 69
01C  21 69
01C  22 69
02A  25 69  (upside down 5)
02C  26 69
02D  28 69
02D  29 69
02D  29 69
02D  29 69
02D  29 69
03B  29 69
03D  45 69 - replaced?
03D  33 69
03D  33 69
03E  33 69
04A  33 69
04B  33 69
04C  37 69
04C  37 69
04C  37 69
04C  37 69
05A  37 69
05E  41 69
06A  41 69
06A  42 69
06A  45 69
07A  48 69
08A   1 70
08C   2 70
09A   5 70
09C   5 70
10A   9 70
10E  12 70

Any other 67 data?

Thanks!
Title: Re: Gas tank date codes
Post by: -vellu on January 02, 2014, 06:35:16 PM
Nor 08C car and  2  70 code

(https://dl.dropboxusercontent.com/u/67014625/08C%20car%20and%202%20%2070.JPG)
Title: Re: Gas tank date codes
Post by: 67rs327 on April 05, 2014, 11:06:07 PM
Here's a '67 for the list. Just pulled the tank last weekend on my '67 LOS 11A car. Code is 42  9D which doesn't seem quite right given the number 9. Could it be upside down and should be a 6?. Referencing some other posts -  the other 11A car listed  (40 6N) I believe is very close in production to mine - so go figure?
Title: Re: Gas tank date codes
Post by: BULLITT65 on April 05, 2014, 11:18:58 PM
Vellu same code as my 08C, good to know it was pretty uniform.
Title: Re: Gas tank date codes
Post by: MyRed67 on April 05, 2014, 11:40:08 PM
Here's a '67 for the list. Just pulled the tank last weekend on my '67 LOS 11A car. Code is 42  9D which doesn't seem quite right given the number 9. Could it be upside down and should be a 6?. Referencing some other posts -  the other 11A car listed  (40 6N) I believe is very close in production to mine - so go figure?
67rs327, Hi!  I'm Mike, the guy with the first tank on the list.    11A - 40 6N.  The plant production run # in upper right corner of my tag is A638, which would indicate it was actually built on the 1 st. of Nov.(per the A)  My car is also Bolero Red, unfortunately not as well optioned as yours.  It still has original 327 (was 2Bbl.,Powerglide) now built look just like a 302, "Day 2", with a built TH 350 and 4:11 12 bolt Posi.  Welcome, nice car!     BTW: my production run # is LOS  8031
Title: Re: Gas tank date codes
Post by: 67rs327 on April 06, 2014, 12:08:23 AM
Hi Mike. I remembered you from some postings last summer when I picked up the car and you mentioned they were born close together. My trim tag corner code is D671 and the production run # is  LOS 8461.  So very close.  I've been picking thru the car off/on all winter  - and will be sure to stay in contact as these cars I'm sure have a lot in common. Chris
Title: Re: Gas tank date codes
Post by: 67rs327 on April 06, 2014, 12:52:18 AM
Meant to attach this for reference.
Title: Re: Gas tank date codes
Post by: MyRed67 on April 06, 2014, 03:43:09 AM
Hi Mike. I remembered you from some postings last summer when I picked up the car and you mentioned they were born close together. My trim tag corner code is D671 and the production run # is  LOS 8461.  So very close.  I've been picking thru the car off/on all winter  - and will be sure to stay in contact as these cars I'm sure have a lot in common. Chris
Chris,  now that you mention it, yes I do remember some posts back and forth.  Wow, 430 cars, that is close.  As for the # in upper right corner, Nov. 1st. was on a Tues., so your # starting with D should have been Fri. of the same week.  But the 430 they could have built in 1 or 2 days.  Yours had more options so maybe it got held up a little.
Title: Re: Gas tank date codes
Post by: Leon in Mn. on April 03, 2015, 08:50:34 PM
Not sure if it is relevant anymore with all the gas tank codes already in the database, but I got finally around to looking at the gas tank code of my 67 03C today and found 11 N 7 on the tank.  LOS built car, built 3rd week of March puts it right in a few days before assembly the way it looks.  Also, the tank is painted black (looks like factory as this car has a lot of originality to it.)  I see someone already has the same numbers in the list.  11 N 7 would be 11th week of 67 night shift I believe?  Just my 2 cents worth without inflation!  :)
Title: Re: Gas tank date codes
Post by: BULLITT65 on April 03, 2015, 09:07:11 PM
Its always relevant. We are always trying to gather more info about dated parts.
Title: Re: Gas tank date codes
Post by: Leon in Mn. on April 04, 2015, 08:11:45 PM
No problem.  Glad I could be of some help. 
Leon in Mn.
Title: Re: Gas tank date codes
Post by: lynnbilodeau on July 03, 2015, 09:17:30 PM
Kurt.  You can add my 08A car to the mix.   Tank was dated 1 70.   I thought it was a replacement tank under warranty, as I did not know they started dating for 70 in Aug.
Title: Re: Gas tank date codes
Post by: KurtS on July 15, 2015, 06:48:50 AM
Lots of consistent data.
Here's the updated compilation. 67 has a calendar week code. 16 D 7 would be the 16th week of 67, day shift. 40 6N would be 40th week of 66, night shift.
The format changed in 68 and 69 to have the week counted from the beginning of the model year. The extended 69 model year used tanks dated for the 70 model year.
LOS and NOR data is intermixed and shows the same pattern.

11A  42 6D  (stamped 42 9D)
11A  40 6N
??    52 N 6
02A   5 N 7
02C   5 D 7
02E   6 D 7  (stamped 7D6)
03B   9 D 7
03C 11 N 7
03C 11 N 7
04B   4 N 7
04D   5 D
05C  16 D 7

10E  7 5 N  (7 may be a 2 and 5 is upside down)
11B  68 15
11C  68 17
12D  68 20
01C  68 19
02C  68 27
02D  68 32
02E  68 32
03C  68 34
04A  68 37
04D  68 41
05C  68 42
05C  68 43
05D  68 44
07C  68 52
07D  68 52
07D  68 53

09B   1 69
09B   1 69
10A   6 69
10C   4 69
10D  10 69
10D  10 69
11A  12 69
11C  11 69
11D  14 69
11D  15 69  (stamped 69 51)
11D  16 69
11D  17 69
12A  16 69
12B  17 69
12B  17 69
12C  16 69
12C  16 69
01B  21 69
01B  21 69
01C  21 69
01C  22 69
02A  25 69  (upside down 5)
02C  26 69
02D  28 69
02D  29 69
02D  29 69
02D  29 69
02D  29 69
03B  29 69
03D  45 69 - replaced?
03D  33 69
03D  33 69
03E  33 69
04A  33 69
04B  33 69
04C  37 69
04C  37 69
04C  37 69
04C  37 69
05A  37 69
05E  41 69
06A  41 69
06A  42 69
06A  45 69
07A  48 69
08A   1 70
08A   1 70
08C   2 70
08C   2 70
09A   5 70
09C   5 70
10A   9 70
10E  12 70

Thanks!
Title: Re: Gas tank date codes
Post by: crobjones2 on July 17, 2015, 02:19:44 AM
Kurt- if you want to add clarification to my tank 06A 45 69 - the vehicle is a third week 06A
Title: Re: Gas tank date codes
Post by: KurtS on July 17, 2015, 03:30:44 AM
Good point, but since we don't know where the other 06A cars fit in, I'll just leave it as-is. :)
Thanks!
Title: Re: Gas tank date codes
Post by: dannystarr on August 26, 2015, 06:55:33 AM
Was doing a tank date info search and found this thread. My car is Norwood / 05E / 68  46 ...  46th week of production starting august 1st of '67. Which would be the 4th week of April 1968. Between the 21st and the 27th.  Danny
Title: Re: Gas tank date codes
Post by: BowtieSweden on August 26, 2015, 07:59:33 AM
I was planing to buy a new tank, but if I can find a date code I will try to save it of course. I have a big dent on it, around three inches in diameter and one inch deep.
What's the best way to fix that dent? A little fuel in it and a match, or?

/Gus
Title: Re: Gas tank date codes
Post by: HawkX66 on August 26, 2015, 11:52:31 AM
Here's mine:

08D (69)
2 70

(http://i1164.photobucket.com/albums/q573/SgtHawkUSMC/69%20Camaro%20SS396%20L34/69%20Gas%20Tank/IMG_20150725_130044.jpg) (http://s1164.photobucket.com/user/SgtHawkUSMC/media/69%20Camaro%20SS396%20L34/69%20Gas%20Tank/IMG_20150725_130044.jpg.html)
Title: Re: Gas tank date codes
Post by: BULLITT65 on August 26, 2015, 10:01:47 PM
Same date as mine. Which makes sense since your car built soon after mine.
Title: Re: Gas tank date codes
Post by: HawkX66 on August 27, 2015, 01:08:51 AM
Same date as mine. Which makes sense since your car built soon after mine.
Nice. They just had a birthday. Mine should have been 8/21.
Title: Re: Gas tank date codes
Post by: BULLITT65 on August 27, 2015, 02:07:47 AM
Thats intersting. According to the 1969 calendar and NCRS mine was built (finished?) 8/19 which was a Tuesday and the tag reads 08C. Your car was built the same week according to the calendar, on 8/21 a Thursday, but then dated 08D?

Maybe my car was waiting on parts?
Title: Re: Gas tank date codes
Post by: 69Z28-RS on August 27, 2015, 04:07:01 AM
Compare your body numbers to see when each order was entered into the system...  Austin:  Sounded to me like yours got built a bit sooner than initially expected...
Title: Re: Gas tank date codes
Post by: BULLITT65 on August 27, 2015, 04:33:21 AM
Well if I remember correctly our vin numbers are close, I don't think we compared body numbers, (yet).
Title: Re: Gas tank date codes
Post by: HawkX66 on August 27, 2015, 11:48:25 AM
Well if I remember correctly our vin numbers are close, I don't think we compared body numbers, (yet).
I'm going off what someone told me from CRG a few years ago. They said either 8/21 or 8/22, but more than likely 8/21. My body number is: Norwood 106672. What's yours? Let me know if I'm the one that's off... I don't have the NCRS sheet.
Title: Re: Gas tank date codes
Post by: BULLITT65 on August 27, 2015, 03:23:29 PM
I purchased the sheet, but don't have it with me I had to dig back in an email to Gary. My body number is 101272
Title: Re: Gas tank date codes
Post by: HawkX66 on August 27, 2015, 04:44:57 PM
Mine is 5,400 cars later. That seems like quite a few. I can't remember, how many did they average per day? I'd have to say that someone gave me a bad date way back when.
Just realized we're hijacking this one... I'll bow out for now. Sorry gents.
Title: Re: Gas tank date codes
Post by: HawkX66 on September 16, 2015, 06:33:45 PM
Thats intersting. According to the 1969 calendar and NCRS mine was built (finished?) 8/19 which was a Tuesday and the tag reads 08C. Your car was built the same week according to the calendar, on 8/21 a Thursday, but then dated 08D?

Maybe my car was waiting on parts?
Just a heads up... I was a day off. Mine was final assembled Friday 8/22 (I always liked Fridays!). I broke down and got the NCRS report. My body number is 106672.
Title: Re: Gas tank date codes
Post by: crobjones2 on September 27, 2015, 10:31:51 PM
I was planing to buy a new tank, but if I can find a date code I will try to save it of course. I have a big dent on it, around three inches in diameter and one inch deep.
What's the best way to fix that dent? A little fuel in it and a match, or?

/Gus


Gus- try a radiator shop. The tank is soldered together. I was able to get my filler neck re-soldered by an old school radiator guy.
Title: Re: Gas tank date codes
Post by: suturb110 on November 04, 2015, 12:58:19 AM
My 1969 Z28 Camaro Vin # 124379L502278; build date of 09D 1968 has a gas tank date code of 5  69.

Thanks,
Mike
Title: Re: Gas tank date codes
Post by: BULLITT65 on November 04, 2015, 01:18:47 AM
thats a pretty early 69 Z
Title: Re: Gas tank date codes
Post by: cook_dw on December 21, 2015, 06:10:58 PM
03D
68 36

Title: Re: Gas tank date codes
Post by: FortLangleyBC on January 02, 2016, 08:48:48 PM
My 1968 05C is 68 42
Myself 1969 04C is 37 69

Both are consistent with the previous data.
Title: Re: Gas tank date codes
Post by: 69z27z87 on February 03, 2016, 06:08:37 PM
my 69 Camaro is a 10C car....

so add me to the list with the 70 stamps....9 70 found on my original gas tank
Title: Re: Gas tank date codes
Post by: KurtS on February 06, 2016, 04:46:30 AM
Here was the latest compilation.... Look farther down now.... :)
Title: Re: Gas tank date codes
Post by: FortLangleyBC on February 06, 2016, 04:19:00 PM
Awesome database - thanks Kurt😀
Title: Re: Gas tank date codes
Post by: dino67 on February 07, 2016, 05:58:29 PM
My 67 05A

17 D 7   (The D is backwards)
Title: Re: Gas tank date codes
Post by: KurtS on February 07, 2016, 07:53:15 PM
Here's the latest compilation. Trends are obvious.
67 has a calendar week code. 16 D 7 would be the 16th week of 67, day shift. 40 6N would be 40th week of 66, night shift.
The format changed in 68 and 69 to have the week counted from the beginning of the *model* year. The extended 69 model year used tanks dated for the 70 model year.
LOS and NOR data is intermixed and shows the same pattern.

11A  42 6D  (stamped 42 9D)
11A  40 6N
??    52 N 6
02A   5 N 7
02C   5 D 7
02E   6 D 7  (stamped 7D6)
03B   9 D 7
03C 11 N 7
03C 11 N 7
04B   4 N 7
04D   5 D
05A  17 D 7
05C  16 D 7

10E  7 5 N  (7 may be a 2 and 5 is upside down)
11B  68 15
11C  68 17
12D  68 20
01C  68 19
02C  68 27
02D  68 32
02E  68 32
03C  68 34
03D  68 36
04A  68 37
04D  68 41
05C  68 42
05C  68 42
05C  68 43
05D  68 44
05E  68 46
07C  68 52
07D  68 52
07D  68 53

09B   1 69
09B   1 69
09D   5 69
10A   6 69
10C   4 69
10D  10 69
10D  10 69
11A  12 69
11C  11 69
11D  14 69
11D  15 69  (stamped 69 51)
11D  16 69
11D  17 69
12A  16 69
12B  17 69
12B  17 69
12C  16 69
12C  16 69
01B  21 69
01B  21 69
01C  21 69
01C  22 69
02A  25 69  (upside down 5)
02C  26 69
02D  28 69
02D  29 69
02D  29 69
02D  29 69
02D  29 69
03B  29 69
03D  45 69 - replaced?
03D  33 69
03D  33 69
03E  33 69
04A  33 69
04B  33 69
04C  37 69
04C  37 69
04C  37 69
04C  37 69
04C  37 69
05A  37 69
05E  41 69
06A  41 69
06A  42 69
06A  45 69
07A  48 69
08A   1 70
08A   1 70
08C   2 70
08C   2 70
08D   2 70
09A   5 70
09C   5 70
10A   9 70
10C   9 70
10E  12 70

Thanks!
Title: Re: Gas tank date codes
Post by: X33RS on May 16, 2016, 06:51:01 PM
My 12D built 69 Z has a gas tank code of 19  69
Title: Re: Gas tank date codes
Post by: BULLITT65 on May 16, 2016, 10:44:51 PM
Looks like that lines up Larry.. :)
Title: Re: Gas tank date codes
Post by: X33RS on May 16, 2016, 10:54:19 PM
I knew it was original but I can't make much sense from the date code.  Like most others I've seen it's an odd series of numbers for a 68 built car.  Even using a Julian format it doesn't make sense, and Jan 9th, 1969 doesn't make sense either.

But yeah like you said, it lines up with the other weird numbers for late 68 cars.  Just thought I'd post because I don't see a 12D car on the list.
Title: Re: Gas tank date codes
Post by: 69Z28-RS on May 17, 2016, 02:33:53 AM
X33..  The gas tanks are apparently dated by the *week*, beginning with initial production for a *model year*... so your '69' means 1969 model year, and the 19 indicates the 19th week of production for the 69 model year... :)
My late '69 (09C) is dated 05 70  - assumed to be correct since in a normal year, a September car WOULD be for the next model year (1970 in this case)...
Title: Re: Gas tank date codes
Post by: 6672DRIVER on May 17, 2016, 06:02:58 AM
Not sure if you are looking for more numbers, but mine is:
10A car with 05 69 date coded tank

Gary
Title: Re: Gas tank date codes
Post by: daves87gn on May 19, 2016, 05:04:06 AM
my 04C
guess my 04C was built early in the week?

(http://i1048.photobucket.com/albums/s376/daves87gn/Mobile%20Uploads/image_zpscghynntb.png) (http://s1048.photobucket.com/user/daves87gn/media/Mobile%20Uploads/image_zpscghynntb.png.html)

whole bottom of my car has heavy undercoating
Title: Re: Gas tank date codes
Post by: cruizin69 on June 07, 2016, 12:45:35 AM
My 02A Norwood car has a tank date code 25 69 with the 5 upside down also,like one other member.I just had a chance to look for it today.
Is it the 25 day of 1969?
Title: Re: Gas tank date codes
Post by: BULLITT65 on June 07, 2016, 12:52:12 AM
no, more like 25th week of the model year.
Title: Re: Gas tank date codes
Post by: ko-lek-tor on June 07, 2016, 02:14:00 AM
no, more like 25th day of the model year.
huh??  25th WEEK of model year.
Title: Re: Gas tank date codes
Post by: BULLITT65 on June 07, 2016, 02:15:48 AM
Thats what I meant. See above... ::)
Title: Re: Gas tank date codes
Post by: ko-lek-tor on June 07, 2016, 02:23:50 AM
 
Thats what I meant. See above... ::)
What he said... 8)
Title: Re: Gas tank date codes
Post by: dale_z28 on June 18, 2016, 12:45:59 PM
Here's my stamp, 02D car. Also a pic of the drain that must've been there when I bought it back in '77. Sorry the pic is so small, the stamp is "28  69"
Title: Re: Gas tank date codes
Post by: 69 Zee on July 23, 2016, 12:34:14 AM
My 03B Norwood
Title: Re: Gas tank date codes
Post by: asm69 on July 25, 2016, 01:36:46 AM
My 69Z has a build date of 10D (4th week of October 1968). I looked at the gas tank code and found
"69 01". Not sure what that means. Does it mean First week of 1969. I think the tank is original but not sure. I'm the second owner.
Title: Re: Gas tank date codes
Post by: ko-lek-tor on July 25, 2016, 01:54:28 AM
My 69Z has a build date of 10D (4th week of October 1968). I looked at the gas tank code and found
"69 01". Not sure what that means. Does it mean First week of 1969. I think the tank is original but not sure. I'm the second owner.
that is probably 10 69, read backwards or upside down
Title: Re: Gas tank date codes
Post by: asm69 on July 25, 2016, 02:47:57 PM
how ever its read. Does the gas tank stamps mean that the gas tank is original or replaced?
Title: Re: Gas tank date codes
Post by: ko-lek-tor on July 25, 2016, 03:02:07 PM
how ever its read. Does the gas tank stamps mean that the gas tank is original or replaced?
The point of this section, "Research Topics and Reports", is to get data from known original untampered with cars to determine if a pattern exists to understanding date codes and/or other information. If you go back a page, you will see a spread sheet where your tank date fits the collected data and can, therefore, be assumed as original to the car. New model cars generally would be introduced in September. Gearing up for production required parts made ahead of time. Your date, 10 69, or 10th week of production of model year is consistent with data. Production of gas tanks probably started in early or mid August (68) to meet demands of new model production. So say 1st week of August, count up 10 weeks, and that is when your tank was made or about a week before your car was made.
Title: Re: Gas tank date codes
Post by: asm69 on July 25, 2016, 06:19:02 PM
Thank you. I looked at the spread sheet. Good to know gas tank is original to vehicle.
Title: Re: Gas tank date codes
Post by: Butchie7284 on July 27, 2016, 12:51:54 PM
My 11D 68 ss/350's tank says 68 19
Title: Re: Gas tank date codes
Post by: x66 714 on October 09, 2016, 06:01:19 PM
My 02E LA car has 68 30 code.
Pulled the one from my 69 to have repairs & the tank has 29 69 which can't be right for an 08E Norwood. I would need a 2 70 at least. Wonder if they made a 3 70?
Time to find another tank for the 69....Joe
Title: Re: Gas tank date codes
Post by: paceme on October 18, 2016, 03:48:30 PM
Late built 6A car dated 45 69.
Title: Re: Gas tank date codes
Post by: KurtS on October 19, 2016, 04:49:04 AM
Here's the latest and greatest compilation.
67 has a calendar week code. 16 D 7 would be the 16th week of 67, day shift. 40 6N would be 40th week of 66, night shift.
The format changed in 68 and 69 to have the week counted from the beginning of the *model* year. The extended 69 model year used tanks dated for the 70 model year.
LOS and NOR data is intermixed and shows the same pattern.

11A  42 6D  (stamped 42 9D)
11A  40 6N
??    52 N 6
02A   5 N 7
02C   5 D 7
02E   6 D 7  (stamped 7D6)
03B   9 D 7
03C 11 N 7
03C 11 N 7
04B   4 N 7
04D   5 D
05A  17 D 7
05C  16 D 7

10E  7 5 N  (7 may be a 2 and 5 is upside down)
11B  68 15
11C  68 17
11D  68 19
12D  68 20
01C  68 19
02C  68 27
02D  68 32
02E  68 30
02E  68 32
03C  68 34
03D  68 36
04A  68 37
04D  68 41
05C  68 42
05C  68 42
05C  68 43
05D  68 44
05E  68 46
07C  68 52
07D  68 52
07D  68 53

09B   1 69
09B   1 69
09D   5 69
10A  05 69
10A   6 69
10C   4 69
10D  10 69
10D  10 69
10D  10 69
11A  12 69
11C  11 69
11D  14 69
11D  15 69  (stamped 69 51)
11D  16 69
11D  17 69
12A  16 69
12B  17 69
12B  17 69
12C  16 69
12C  16 69
12D  19 69
01B  21 69
01B  21 69
01C  21 69
01C  22 69
02A  25 69  (upside down 5)
02A  25 69  (upside down 5)
02C  26 69
02D  28 69
02D  28 69
02D  29 69
02D  29 69
02D  29 69
02D  29 69
03B  29 69
03B  29 69
03D  45 69 - replaced?
03D  33 69
03D  33 69
03E  33 69
04A  33 69
04B  33 69
04C  33 69
04C  37 69
04C  37 69
04C  37 69
04C  37 69
04C  37 69
05A  37 69
05E  41 69
06A  41 69
06A  42 69
06A  45 69
06A  45 69
07A  48 69
08A   1 70
08A   1 70
08C   2 70
08C   2 70
08D   2 70
09A   5 70
09C   5 70
10A   9 70
10C   9 70
10E  12 70

Thanks!
[/quote]
Title: Re: Gas tank date codes
Post by: x66 714 on October 19, 2016, 11:11:31 AM
I just purchased a tank from a 10D Firebird & the code is 10 70...Joe
Title: Re: Gas tank date codes
Post by: RS_COPO_Canuck on October 19, 2016, 03:45:26 PM
You can add another 02A  25 69  (upside down 5) on the list....that's what's on my car.
Title: Re: Gas tank date codes
Post by: Terry69RSZ28 on October 19, 2016, 11:40:26 PM
I just checked the gas tank today on my 69 RSZ28, 03E build date and it is stamped 33 69
Title: Re: Gas tank date codes
Post by: 6t9x33 on December 03, 2016, 03:29:42 AM
Checked my 01A 69 RS/Z survivor today and it's 19 69 which seems to be right in line!
Title: Re: Gas tank date codes
Post by: Danzo on December 25, 2016, 03:07:22 PM
Guys, how tall are these numbers?
Title: Re: Gas tank date codes
Post by: BULLITT65 on December 25, 2016, 10:29:11 PM
check page 1 of the thread for a pic (not all that big)
Title: Re: Gas tank date codes
Post by: Danzo on December 26, 2016, 12:58:43 AM
That's the problem. All the photos in this topic are enlarged. 
Title: Re: Gas tank date codes
Post by: BULLITT65 on December 26, 2016, 06:23:04 PM
Well A bit smaller than the photo. I would suggest looking at the proportions in the pic of the corner and the size. Are you not able to find yours?
Title: Re: Gas tank date codes
Post by: Danzo on December 27, 2016, 12:10:00 AM
Correct. So I 'm trying to figure if I'm looking for something that is 1/8 tall vs 1/4 tall and if it is the original tank.

Thanks.
Title: Re: Gas tank date codes
Post by: Jim Hinman on February 19, 2017, 10:50:32 PM
Just checked my 69 pace car and it has 28    69 on the corner of the tank E03D car