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Old 03-22-2006, 04:46 PM
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51 chevy 3100

Trying to get info on a rearend for my 51 chevy. want to know what 1/2 ton rearend WITH disk brakes will fit my truck? plus, how hard is it to install power brakes?

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Old 03-22-2006, 05:32 PM
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moving to rear end forum.
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Old 03-22-2006, 07:14 PM
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Pretty much NOTHING out there as it sits under another vehicle will directly swap without some sort of modification, but many will work in your application.

About the MOST you will have to do is weld a new set of spring perches, and shock absorber mount brackets on the axle housing you choose.

You haven't stated what wheel bolt pattern you are looking for, or even if you would want to put a ford 9 inch under there.

You also have to consider what gear ratio you want, and if something else will work or not.

There are plenty of things to consider when swapping out to a newer axle, but since you are most likely looking for something much newer, a junkyard might be the easiest route to find one.
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Old 03-22-2006, 09:15 PM
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Swapping the rear in that truck is more involved than just changing the housing. The AD trucks had an enclosed drive line which isn't compatible with a modern rear end. You'll have to change the trans, driveshaft and rear end to get everything to work.

That said, mid 70's Camaro or Firebird rears are almost a perfect fit.
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Old 03-23-2006, 05:17 AM
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I used a 79 Nova rearend in my 48 as did a couple of others that I know.

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