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Mod | | | Forums66 Topics128,077 Posts1,056,281 Members48,441 | | 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!
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| | | | Joined: May 2005 Posts: 8,983 Sir Searchalot | | Sir Searchalot Joined: May 2005 Posts: 8,983 | Two birds with one stone: Get the Saginaw and dump the tube and rear end. Get a 3.08 or 3.42 for hiway or the perfect all around ratio: 3.73. No adaptor needed. 4 speed Saginaw has three shift levers and ID from the web. There are several ratios of them , identified by the grooves on the input shaft. Price varies. $150-$400 , get the shifter with it if you can. There is one on San Diego/OC craigslist now for $200. And one in L.A. with clutch, bell housing, fly wheel, Hurst shifter and the trans is rebuilt for $600.(3 groove)...Hesperia with Bell housing $180 (3 groove). They have shaft size and spline count differences, I think, so be real sure it fits your setup before you buy. Also check clearance to truck bench seat. Buckets? No problem.
Saginaw 4-speed 1st 2nd 3rd 4th (according to the web)
No grooves 2.84 2.01 1.35 1.00
1 groove 2.54 1.80 1.44 1.00
2 grooves 3.11 2.20 1.47 1.00
3 grooves 3.50 2.47 1.65 1.00
Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. - William Penn
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