Chevy High Performance
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rearend swap

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rearend swap

comerd comerd
New User | Posts: 1 | Joined: 06/13
Posted: 06/24/13
08:41 AM

I have a 1957 chevrolet with a 57 GM rearend. It's 60 in. wide. I would love to replace it with a 9 in. Ford or Dana 60 Chrysler. Which rearend would work without a lot of changes? I need something more durable or stronger.


pepsi1 pepsi1
Guru | Posts: 1718 | Joined: 09/11
Posted: 06/24/13
09:01 AM

They will both require fabrication. If I were doing this I would go with the 9" Ford. It's easier to make gear changes and there are many different gear ratios. I know Currie and Moser are expensive but they fabricate them to fit right in.
Good Luck and have Fun..


Dave632 Dave632
Addict | Posts: 2217 | Joined: 07/08
Posted: 06/24/13
07:21 PM

I agree with Bob.
I would go with the Ford 9" as the aftermarket makes units to go right into your 57.
The Dana 60 has a bigger ring gear at 9.75 and I ran one in my 68 Camaro but they are heavy and the extra rotating weight will slow your car some. I think I could have picked up a couple of tenths switching to a 9".
What kind of power/traction are you making. The stock 57 rear will handle 300 hp or so without much trouble. If you have a 600hp BB with slicks then it is time for another rear?