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Click on image for the lowdown. 
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| | | Forums66 Topics128,051 Posts1,055,730 Members48,426 | | Most Online14,466 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!
| | THANKS!
For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | "Will a mid 60's/70's chev truck 4 speed bolt onto the existing 235 with torque tube 3 speed ?" It depends on the 4-speed.
I think that the open drive-shaft SM420 4-speed was made up to 1967.
Other people will post information for higher-geared 4-speed/5-speed transmissions that will/might bolt up to you clutch housing. | | |
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