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Mod | | | Forums66 Topics128,037 Posts1,055,466 Members48,424 | | 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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For helping keep this great
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on the Internet for over 30 years! and not clogged down
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| | | | Joined: Aug 2016 Posts: 121 'Bolter | | 'Bolter Joined: Aug 2016 Posts: 121 | These are the casting numbers on the factory 3 speed tranny in my 1947 Chevy 3100.
591185
GM2
J277
I think this is a Muncie tranny but not sure. Shifter is in the floor. Cleaned best I could before recording the casting numbers. I could be wrong on a few of the numbers. Any help is appreciated. Thanks, ray | | | | | Joined: Mar 2004 Posts: 6,214 'Bolter | | 'Bolter Joined: Mar 2004 Posts: 6,214 | 591195 is a good number for the 1941-47 truck 3-speed transmission. J277 is the date code Oct 27, 1947 Mike B  | | |
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