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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: 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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