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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!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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#60441 05/14/2006 3:42 PM | Joined: Dec 2004 Posts: 322 'Bolter | | 'Bolter Joined: Dec 2004 Posts: 322 | I want to find out what my 4-speed tranny might have come out of...is there a way to tell how many grooves are on the spline without pulling tranny? I have checked over at Inliners but they don't list it.
casting number is 3935656...there are some other cast numbers too: on a raised stamp is 8054...next to that is an unusual letter combo that looks like an N and F together followed by 01
any help is appreciated!
Blue 50
1950 3100 w/57 235
Patrick’s Saginaw 4 speed and 3:55 rear end
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