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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Mar 2009 Posts: 5 New Guy | | New Guy Joined: Mar 2009 Posts: 5 | I just bought a 50 five-window. I decoded the engine to be a 1958 235.
I can't find any where to decode the trans and rear. trans is a 3 speed on column and rear is supposed to be original.
The trans numbers are as follows:
4
GM
691816
HR214789
H190
The rearend numbers are:
HE1025 and 3657339
Thanks for your help!
Last edited by chad's 5 window; 06/02/2010 2:26 AM.
| | | | | Joined: Mar 2009 Posts: 5 New Guy | | New Guy Joined: Mar 2009 Posts: 5 | Thanks Tim, that was the link I was looking for.
Looks like rear end was built Oct 25th, which makes sense since trim plate shows truck built in Nov.
Could that Muncie be original, with the August date? Also looks like it may of came from a 3600. Mine is a 3100. | | | | | Joined: Sep 2001 Posts: 29,270 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,270 |
Chad,
I also do not understand the 3600 transmission. Maybe someone else will look at this and correct/clarify.
| | | | | Joined: Mar 2009 Posts: 5 New Guy | | New Guy Joined: Mar 2009 Posts: 5 | Maybe Im reading it wrong. Looks like HR is in the 3600,3700 column. | | | | | Joined: Sep 2001 Posts: 29,270 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,270 | | | | | | Joined: Apr 2006 Posts: 506 Shop Shark | | Shop Shark Joined: Apr 2006 Posts: 506 | chad,
Can you recheck that trans. casting #691816.
I think a 50, 3 speed casting should begin with a 5.
Something like 591615.
-Tom
1950 Chevy 3100 w/ 1956 235
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