Author Topic: Rear axal code date  (Read 12830 times)

yankeechaser

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Rear axal code date
« 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
Bo
68 07B Z/28 Nor Le Mans w/houndstooth, headrests & gauges
67 03C 4N LOS RS/SS 4 speed plum w/gauges
68 05E Z/28 NOR British Green 714  no tach or console

Mike S

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Re: Rear axal code date
« Reply #1 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
67 04B LOS SS/RS L35 Hardtop - Original w/UOIT
67 05B NOR SS/RS L35 Convertible - Restored

Mark

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Re: Rear axal code date
« Reply #2 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.
Mark C.
1969 Indy Pace Car
350/300HP RPO Z11

1968RSZ28

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Re: Rear axal code date
« Reply #3 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

68Zproject

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Re: Rear axal code date
« Reply #4 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
68Z28

x66 714

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Re: Rear axal code date
« Reply #5 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
See America's First, Chevrolet

1968 Z/28 Corvette Bronze. Black Hounds Tooth. 02E Los Angeles born 3/13/1968 pnt OO. Purchased March 1976
1969 SS396 Yellow/Yellow 08E Norwood born 8/28/1969 pnt 76E. Purchased April 1981

srode

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Re: Rear axal code date
« Reply #6 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.   
Steve - 02D Z11 and a Plain Jane hardtop

yankeechaser

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Re: Rear axal code date
« Reply #7 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
« Last Edit: February 28, 2012, 12:28:36 AM by yankeechaser »
Bo
68 07B Z/28 Nor Le Mans w/houndstooth, headrests & gauges
67 03C 4N LOS RS/SS 4 speed plum w/gauges
68 05E Z/28 NOR British Green 714  no tach or console

Mike S

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Re: Rear axal code date
« Reply #8 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
67 04B LOS SS/RS L35 Hardtop - Original w/UOIT
67 05B NOR SS/RS L35 Convertible - Restored

yankeechaser

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Re: Rear axal code date
« Reply #9 on: February 28, 2012, 12:24:01 AM »
Yes BV0316G1 E

Bo
68 07B Z/28 Nor Le Mans w/houndstooth, headrests & gauges
67 03C 4N LOS RS/SS 4 speed plum w/gauges
68 05E Z/28 NOR British Green 714  no tach or console

Mike S

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Re: Rear axal code date
« Reply #10 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

67 04B LOS SS/RS L35 Hardtop - Original w/UOIT
67 05B NOR SS/RS L35 Convertible - Restored

JohnZ

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Re: Rear axal code date
« Reply #11 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
'69 Z/28
Fathom Green
CRG

x66 714

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Re: Rear axal code date
« Reply #12 on: February 28, 2012, 04:16:54 PM »
Happy belated birthday,,,,Joe
See America's First, Chevrolet

1968 Z/28 Corvette Bronze. Black Hounds Tooth. 02E Los Angeles born 3/13/1968 pnt OO. Purchased March 1976
1969 SS396 Yellow/Yellow 08E Norwood born 8/28/1969 pnt 76E. Purchased April 1981

1968RSZ28

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Re: Rear axal code date
« Reply #13 on: February 28, 2012, 05:01:39 PM »
Happy Birthday John!    :)

Paul

68Zproject

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Re: Rear axal code date
« Reply #14 on: February 28, 2012, 05:05:58 PM »
Herzlichen Glückwunsch zum Geburtstag
68Z28

1968RSZ28

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Re: Rear axal code date
« Reply #15 on: February 28, 2012, 05:26:56 PM »
Herzlichen Glückwunsch zum Geburtstag

Translated means "Many happy returns".

Paul

NoYenko

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Re: Rear axal code date
« Reply #16 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

L78 steve

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Re: Rear axal code date
« Reply #17 on: February 28, 2012, 06:33:42 PM »
I have a 70 BB Nova with a 3 month prior axle.
69 Z/28 Dover White. SOLD
67 SS/RS Mt. Green 1W,2LGSR,3SL,4K,5BY,07C. SOLD
70 Nova L78 Blk. Cherry,Sandalwood,M21,02B

yankeechaser

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Re: Rear axal code date
« Reply #18 on: February 28, 2012, 06:54:29 PM »
Cool happy bday
Bo
68 07B Z/28 Nor Le Mans w/houndstooth, headrests & gauges
67 03C 4N LOS RS/SS 4 speed plum w/gauges
68 05E Z/28 NOR British Green 714  no tach or console

68Zproject

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Re: Rear axal code date
« Reply #19 on: February 28, 2012, 08:24:36 PM »
Herzlichen Glückwunsch zum Geburtstag

Translated means

Paul

Heartfelt congratulations on your birthday
68Z28

Mike S

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Re: Rear axal code date
« Reply #20 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
67 04B LOS SS/RS L35 Hardtop - Original w/UOIT
67 05B NOR SS/RS L35 Convertible - Restored

KurtS

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Re: Rear axal code date
« Reply #21 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.
Kurt S
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NoYenko

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Re: Rear axal code date
« Reply #22 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)

yankeechaser

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Re: Rear axal code date
« Reply #23 on: March 02, 2012, 01:10:44 PM »
Thanks Kurt and all others that have posted on this thread.
Bo
68 07B Z/28 Nor Le Mans w/houndstooth, headrests & gauges
67 03C 4N LOS RS/SS 4 speed plum w/gauges
68 05E Z/28 NOR British Green 714  no tach or console

Dangerkitty

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Re: Rear axal code date
« Reply #24 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


68 Z/28 (Protect-o-Plate)
302, STR-10 Edelbrock crossram
M22, Corvette 4 wheel disc brakes

 

anything