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Old 05-10-2012, 05:36 PM   #1
srea76
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Transmission date?

I have a th400 transmission out of my 72 and today I found a small plate on the side with

391 at very top
71CA 25146 at bottom

Anyway to trace the manufacturer date etc on these? Or maybe I should look somewhere else for a code stamped?

My engine is a 72 350 so I am hoping I have an original transmission too.
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Old 05-10-2012, 06:03 PM   #2
BADPURPLE70CHEVY
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Re: Transmission date?

Quote:
Originally Posted by srea76 View Post
I have a th400 transmission out of my 72 and today I found a small plate on the side with

391 at very top
71CA 25146 at bottom

Anyway to trace the manufacturer date etc on these? Or maybe I should look somewhere else for a code stamped?

My engine is a 72 350 so I am hoping I have an original transmission too.
Just went though this on here because a 68 i bought has the plate on the side. Someone else who can decode better will chime in.
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Old 05-10-2012, 07:08 PM   #3
SS Tim
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Re: Transmission date?

Funny... we did just do this....
391-366=25 trans built 01/25/1971
71 model year C Chevrolet A low perf. HD car application, think 350 400, 396/402 2bbl carb motors (truck would be T as in CT) 25146 unit serial number. The other link is here. Would the three of you please check for partial VIN at the shown loctions for me next time you are under there?
http://67-72chevytrucks.com/vboard/s...d.php?t=523187

Last edited by SS Tim; 05-10-2012 at 07:16 PM.
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Old 05-10-2012, 11:50 PM   #4
FirstOwner69
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Re: Transmission date?

Quote:
Originally Posted by SS Tim View Post
Funny... we did just do this....
391-366=25 trans built 01/25/1971
71 model year C Chevrolet A low perf. HD car application, think 350 400, 396/402 2bbl carb motors (truck would be T as in CT) 25146 unit serial number. The other link is here. Would the three of you please check for partial VIN at the shown loctions for me next time you are under there?
http://67-72chevytrucks.com/vboard/s...d.php?t=523187
Still planning to check for the VIN stampings for you. It's on my list. Probably next week Tim.

Jim
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