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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: Sep 2001 Posts: 29,270 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,270 | If you use the 1947 torque-tube rear-end, it has a 4:11:1 ratio. The 1954 rear end has a 3.90:1 ratio.
One advantage of the 4:11 rear end is that the ring gear carrier works with the 3.55 ring and pinion conversion (if you ever want to o the conversion). An earlier carrier can be used in the 1954 3.90 rear end, if you want to do the 3.55 conversion
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