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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: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | The bell houseing for the SM465 uses a larger center hole then the earlier models. Do the 3 speed trans from the same era use the large hole also? I wound up with 2 of them from a sale & didn't realize they were the larger hole.
George
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | | | | Joined: Feb 2002 Posts: 12,029 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Feb 2002 Posts: 12,029 | not sure it's age related, the truck 3 speeds need a larger center hole than cars, I have both car and truck Saginaw [68+] 3 speeds and the car ones have a smaller front bearing retainer
Bill | | | | | Joined: Feb 2004 Posts: 29,760 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,760 | I just helped a local bolter install a Saginaw 3-speed in a 1960 model 1/2 ton, and I had to machine the bearing retainer to fit his bellhousing. At least some of the full-synchro 3 speeds had the big bearing retainer diameter to fit the bigger bellhousing hole.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
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