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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: Sep 2009 Posts: 5,844 Gearhead, Stovebolt Tech and Parts Tracker, Mod for Swap Meet and GTT | | Gearhead, Stovebolt Tech and Parts Tracker, Mod for Swap Meet and GTT Joined: Sep 2009 Posts: 5,844 | Mike - Can you tell us if it has a manual or automatic trans?
A quick peek on the web shows the '81 C70 primary manual transmissions would likely be an Eaton/Fuller 5 speed. The primary automatics I found listed for an '81 C70 are listed as an Allison MT640 or MT653.
I'd have to more digging to see what else I can find. The number listed for the transmission in your picture didn't come back with any listing I could find.
~ Dan 1951 Chevy 3 window 3100Follow this story in the DITY Gallery"My Grandpa Carl's Truck and How it Became Mine"1966 Chevelle (Wife's Hot Rod) | 2013 Chevy Silverado (Current daily driver) US Army MSG Retired (1977-1998) | Com Fac Maint Lead Tech Retired (1998-2021)
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