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12 bolt from junkyard?

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Old May 21, 2006 | 11:14 AM
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Default 12 bolt from junkyard?

theoretically could i go to a junk and ****** a 12 bolt rear end off a car truck or whatever and modify it to work on my car?
a friend of mine told me a silverado 2500 comes stock with a 12 bolt rear end. just wondering....what kind of modification would have to be made..like with the suspension, abs...etc.?
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Old May 21, 2006 | 11:45 AM
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No to about everything.

Silverados either have 10 bolts or 14 bolts, a 2500 would have a semi floating 14 bolt. The old chevy trucks, 1987 and down had 12 bolts, some did.

They are too wide, the bolt pattern is different, there is no torque arm mount.

So at the least you'd need to get the housing narrowed, new axles, and create a way to bolt up the torque arm. And weld all the spring brackets on in the right place.
Sounds easy looking at this on a computer screen. I bet someone could do it, you might be able to do it, I don't know your skills personally but I do guarantee after all that work you might save $100 or so compared to just buying one ready to bolt on.
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Old May 21, 2006 | 09:05 PM
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Originally Posted by 8a8mfh
No to about everything.

Silverados either have 10 bolts or 14 bolts, a 2500 would have a semi floating 14 bolt. The old chevy trucks, 1987 and down had 12 bolts, some did.

They are too wide, the bolt pattern is different, there is no torque arm mount.

So at the least you'd need to get the housing narrowed, new axles, and create a way to bolt up the torque arm. And weld all the spring brackets on in the right place.
Sounds easy looking at this on a computer screen. I bet someone could do it, you might be able to do it, I don't know your skills personally but I do guarantee after all that work you might save $100 or so compared to just buying one ready to bolt on.
Even some of the older ones (ex: our 67 3/4 ton) have the 14 bolts also.
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