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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: Aug 2010 Posts: 24 'Bolter | | 'Bolter Joined: Aug 2010 Posts: 24 | Hi Guys, Before Installing a 3 speed with the BW overdrive I have some questions in relation to a 1950 3/4 Ton. As of now I have the 4 speed with enclosed torque tube front, carrier bearing,and open driveshaft to rear. which I will remove and plan to have a new driveshaft made. Should I go with a 1 piece driveshaft? I am also going with a smaller 10" clutch disc and pp from stock 11". Any suggestions/tech please! | | | | | Joined: Sep 2002 Posts: 467 'Bolter | | 'Bolter Joined: Sep 2002 Posts: 467 | I'm planning to do the same thing in my 49 3/4 ton. I've already got a one piece drive shaft as it was converted to a later Saginaw and a 250. | | | | | Joined: Aug 2010 Posts: 24 'Bolter | | 'Bolter Joined: Aug 2010 Posts: 24 | Cool Mapleleaf, Let me know how it turns out. I've done some research about 2 Piece driveshaft to one, I think Ill stick with modifying a 2 piece to work. Any input is always welcome! | | | | | Joined: Jan 2001 Posts: 5,337 'Bolter | | 'Bolter Joined: Jan 2001 Posts: 5,337 | I just put a T5 in a 54 3/4 ton and used a one piece.
See the USA in your vintage Chevrolet! My Blog | | | | | Joined: Jan 2008 Posts: 4,962 'Bolter | | 'Bolter Joined: Jan 2008 Posts: 4,962 | If you use a 1 piece drive shaft, you will be just about at the limit for for a 1 piece shaft. You have to be very careful that the shop that builds it gets it true and balanced. 2 short shafts are much stronger than a single shaft. I am going to put a Saginaw/BW in a 50 model GMC. It will have a 302 engine and I am leaning toward 2 shafts because with the 4.57 rears and .70 OD, the shaft is really going to be spinning. | | |
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