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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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#60442 05/16/2006 12:14 AM | Joined: Dec 2004 Posts: 322 'Bolter | | 'Bolter Joined: Dec 2004 Posts: 322 | I know it was the weekend...so I thought I would bump this up again to see if anyone can help!
Thanks,
Blue 50
1950 3100 w/57 235
Patrick’s Saginaw 4 speed and 3:55 rear end
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#60443 05/16/2006 4:15 PM | Joined: Mar 2005 Posts: 627 'Bolter | | 'Bolter Joined: Mar 2005 Posts: 627 | I'll bet Patrick's could tell you from the number.
Mike Barnes
1950 GMC 1-ton pickup
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#60444 05/16/2006 9:35 PM | Joined: Dec 2004 Posts: 322 'Bolter | | 'Bolter Joined: Dec 2004 Posts: 322 | Mike,
your probally right...he must have seen hundreds of them!
Blue 50
1950 3100 w/57 235
Patrick’s Saginaw 4 speed and 3:55 rear end
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#60445 05/19/2006 8:02 PM | Joined: Jun 2000 Posts: 50 Wrench Fetcher | | Wrench Fetcher Joined: Jun 2000 Posts: 50 | Blue - Out of curiosity was Patrick able to ID your tranny for you? I have the Sag 4spd 2- Ring tranny he recommends but after many e-net searches and trips to the bookstore I've never been able to positivly ID my transmission. About all I know is it's GM. One clue I did read was that the lower first gear trannys were used on 6's and the higher ones were used on V-8's. Bug
1951 Chevrolet 3100 AD Pickup
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