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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: Oct 2003 Posts: 5,152 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Oct 2003 Posts: 5,152 | Probably not your best option.
The brake drums have been hard to get though apparently the 3/4-ton ones are now being reproduced.
The 4.57 gears will limit your highway speed.
You should be able to find another axle that is a better choice if you are committed to a change. It sounds like you're changing the rear because you need to change the transmission. An open drive type SM420 can be converted to torque tube type easily and that might be your most direct solution.
1955 1st GMC Suburban | 1954 GMC 250 trailer puller project | 1954 GMC 250 Hydra-Matic | 1954 Chevy 3100 . 1947 Chevy COE | and more...
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