CRG Discussion Forum

Camaro Research Group Discussion => Decoding/Numbers => Topic started by: yankeechaser on February 27, 2012, 05:57:53 PM

Title: Rear axal code date
Post by: yankeechaser on February 27, 2012, 05:57:53 PM
What is the average date on rear diff. versus build date of trim tag. I have read that engine was 30 days or so. Does trans and rear follow pattern.

Bo
67 RS/SS
68 Z/28
Title: Re: Rear axal code date
Post by: Mike S on February 27, 2012, 06:18:55 PM
 Here are my 2 67 rear dates (plus engines):

NOR 5B - 396/MT/3:31 posi - date - 0331 - This is the performance rear option. Lag about 6 weeks. (engine date 0308)
LOS 4B - 396/AT/3:07 non-posi - date - 0404 - This is the standard rear for this base engine option. Lag about 9 days. (engine date 0214 - assembled with love  :) )

  I think the gear ratio installed may have an effect on the assembly date of the rear vs. the car.
The standard ratios  should have less of a date lag because they would be used on all cars that didn't have the optional rear ordered, as is the case of my LOS car.

Mike
Title: Re: Rear axal code date
Post by: Mark on February 27, 2012, 06:22:38 PM
My 69 3.07 non posi axle is dated 2 days before the car left the plant, so it was actually assembled and shipped to Norwood while my car was on the line.  My car is an 04L built car, that left the assembly line on April 30, 1969 around 10 pm.
Title: Re: Rear axal code date
Post by: 1968RSZ28 on February 27, 2012, 06:59:28 PM
My 02C Los Angeles built '68 Z/28 has a BU 3.73:1 positraction rear axle that was cast on January 3, 1968 and assembled on January 19, 1968.

Paul
Title: Re: Rear axal code date
Post by: 68Zproject on February 27, 2012, 07:35:25 PM
My 05D 68Z has 05-17 on the rear end stamp.  I don't remember the cast date.  The engine ass. was 05-06
Title: Re: Rear axal code date
Post by: x66 714 on February 27, 2012, 10:09:53 PM
2 1968 z/28s built 02E

Mine BW1220G2 4:56

Another z/28 vin number 13 prior to mine

BX1109G2 4:88

They might have sold more 4:56 orders than 4:88 thus needing to restock more often....Joe
Title: Re: Rear axal code date
Post by: srode on February 27, 2012, 11:19:14 PM
My 02D Z11 3.07 Non Posi was built late November or early December, don't remember the actual date but its in the ball park.  So it's a significant time before the build of the car.  Don't have any reason to believe it's not the original to the car, I bought it in 84.   
Title: Re: Rear axal code date
Post by: yankeechaser on February 27, 2012, 11:48:34 PM
My 68 z is 07b  rear code BV0316G1 E  engine is V0628mo on pad. CAST E228. It looks like rear diffs. were stretched out more
Title: Re: Rear axal code date
Post by: Mike S on February 27, 2012, 11:59:41 PM
My 68 z is 07b  rear code BV031G1 E  engine is V0628mo on pad. CAST E228. It looks like rear different were espresso out more.
The date code should be four numbers. Did you leave one out?

Mike
Title: Re: Rear axal code date
Post by: yankeechaser on February 28, 2012, 12:24:01 AM
Yes BV0316G1 E

Title: Re: Rear axal code date
Post by: Mike S on February 28, 2012, 01:39:45 AM
My 68 z is 07b  rear code BV0316G1 E  engine is V0628mo on pad. CAST E228. It looks like rear diffs. were stretched out more

Looking at your rear code of being a 4:10, that is certainly a less common ratio option to order, IMO, even back in '68. Your date spread is no worst than Joe's (X66 714) cars that too have steep ratios. I would venture to say yours (and Joe's) are within a very acceptable range.
 As for engine dates vs. cowl dates, I find it interesting how the small block Z's are so close compared to my BB dates (and other BB dates I have seen in the past). I guess it is partially dependent on when the model options 'catches on' to the buying public.

Interesting thread!

Mike

Title: Re: Rear axal code date
Post by: JohnZ on February 28, 2012, 03:55:26 PM
My 02D Norwood '69 Z/28 "BV" 4.10 axle was built on February 19th, and the car came off the Final Line on February 27th.

Its birthday (and mine) was yesterday.  ;D
Title: Re: Rear axal code date
Post by: x66 714 on February 28, 2012, 04:16:54 PM
Happy belated birthday,,,,Joe
Title: Re: Rear axal code date
Post by: 1968RSZ28 on February 28, 2012, 05:01:39 PM
Happy Birthday John!    :)

Paul
Title: Re: Rear axal code date
Post by: 68Zproject on February 28, 2012, 05:05:58 PM
Herzlichen Glückwunsch zum Geburtstag
Title: Re: Rear axal code date
Post by: 1968RSZ28 on February 28, 2012, 05:26:56 PM
Herzlichen Glückwunsch zum Geburtstag

Translated means "Many happy returns".

Paul
Title: Re: Rear axal code date
Post by: NoYenko on February 28, 2012, 06:22:44 PM
John, HAPPY BIRTHDAY.
My Nor 11A, 396-325,  Diff Cast K88 ( Nov 8 68 ), Diff Stamp BL1111G2 ( Nov 11 68 ), Engine cast Aug 68, Inspection stamp on brake adjuster 316 ( Nov 16 ).
Definitely not completed in the second week of November. Nice thread. George
Title: Re: Rear axal code date
Post by: L78 steve on February 28, 2012, 06:33:42 PM
I have a 70 BB Nova with a 3 month prior axle.
Title: Re: Rear axal code date
Post by: yankeechaser on February 28, 2012, 06:54:29 PM
Cool happy bday
Title: Re: Rear axal code date
Post by: 68Zproject on February 28, 2012, 08:24:36 PM
Herzlichen Glückwunsch zum Geburtstag

Translated means

Paul

Heartfelt congratulations on your birthday
Title: Re: Rear axal code date
Post by: Mike S on February 28, 2012, 11:32:18 PM
My 02D Norwood '69 Z/28 "BV" 4.10 axle was built on February 19th, and the car came off the Final Line on February 27th.

Its birthday (and mine) was yesterday.  ;D

Isn't it nice to know we all have a 'date code' ?  :D
Happy belated B-Day, John

Mike
Title: Re: Rear axal code date
Post by: KurtS on March 02, 2012, 08:56:55 AM
My 68 z is 07b  rear code BV0316G1 E  engine is V0628mo on pad. CAST E228. It looks like rear diffs. were stretched out more
If original, I'd say that axle date is very atypical. All the others that we have data on in that timeframe are much closer - less than a month.
Title: Re: Rear axal code date
Post by: NoYenko on March 02, 2012, 12:58:01 PM
John, HAPPY BIRTHDAY.
My Nor 11A, 396-325,  Diff Cast K88 ( Nov 8 68 ), Diff Stamp BL1111G2 ( Nov 11 68 ), Engine cast Aug 68, Inspection stamp on brake adjuster 316 ( Nov 16 ).
Definitely not completed in the second week of November. Nice thread. George
Inspection stamp on brake adjuster should be 316 (Nov 11)
Title: Re: Rear axal code date
Post by: yankeechaser on March 02, 2012, 01:10:44 PM
Thanks Kurt and all others that have posted on this thread.
Title: Re: Rear axal code date
Post by: Dangerkitty on September 18, 2023, 04:07:44 AM
My 68 z is 07b  rear code BV0316G1 E  engine is V0628mo on pad. CAST E228. It looks like rear diffs. were stretched out more

Hi, I'm looking for engine V0628MO.
Does your V0628MO block have your VIN stamped on it too? 
I own a 68 Z/28 with the Protect-0-plate and it shows V0628MO as the engine number, and VIN matches my car, but the original block is missing.
Been searching for the engine and came across your post.
Thanks in advance for following up on this.
Thomas

(https://images.craigslist.org/00t0t_1RRwfVcStQM_0CI0t2_1200x900.jpg)