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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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#70741 01/01/2007 6:10 PM | Joined: Apr 2005 Posts: 2,097 'Bolter | | 'Bolter Joined: Apr 2005 Posts: 2,097 | Ghostrider,
In my collection of OD transmissions and regular 3 speeds, some have the small shaft like the one on your OD and some have a solid shaft like the earlier AD trans in your picture. I'm not sure why there is a difference but both will work equally well. I have probably rebuilt 50 of these transmissions and have never seen anyone break the clutch gear. This basic transmission was the standard bearer for the early Corvette (with a 2:20 first gear and steel syncro rings) before the 4 speed became popular. Pontiac also used it 57-58 with a bigger set of gears. They hold up ok if you understand their limitations. Fred
1956 3100 Pickup/Red/350/3sp OD/PS/Disc Brakes
1957 Bel Air Sport Coupe/Red/355/TH350/PS/Disc Brakes
2017 Silverado LT Single Cab SB/Black/5.3/6 Speed Trans
1947 Willys CJ2A w/F-Head engine
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