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Mod | | | Forums66 Topics128,012 Posts1,055,312 Members48,419 | | Most Online14,466
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!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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old truck web site
on the Internet for over 30 years! and not clogged down
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| | | | Joined: Jan 2001 Posts: 45 Member | | Member Joined: Jan 2001 Posts: 45 | I just pulled my transmission for a rebuild.
4 speed 1952 Chev half ton
the number cast on the case is 3761980
the number casted on the case cover is 591568
this number dont match the 48-54 sm420 transmission
Can anyone tell me what this transmission is by the 2 casting numbers ??
My master parts book goes to 1955 and this
number is not listed
thanks in advance if someone can help identify ??
Mike | | |
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