Rear End Swap Questions

[BrookelynnGreen]

I have an 86 Silverado SWB & 86 C10 Custom Deluxe SWB. I'm fixing up the Silverado and using the C10 for parts. The C10 has a posi rear end and the Silverado has a limited slip. I'm wanting to swap the rear ends so the Silverado has the posi. So my question is:

Should the C10's posi bolt right up to my Silverado? and vice verse?

Thank You!!

[LONGHAIR]

If you a talking about factory original parts, they are both the same.
They are Eaton Gov-loc units, referred to by GM as the option code G80.
"Posi-traction" is just Chevrolet's term for a clutch-type limited slip differential, the are the same thing.
But, a Gov-loc is not as simple as that. They are a "self adjusting" unit that is supposed to be an up-grade to the original.......not so in the opinion of most.

Either way, unless it has been modified by a previous owner, neither truck has a traditional Posi-traction in it.

[BrookelynnGreen]

So can you please tell me what I need to look for before I do the swap to at least ensure that it will go smoothly. Thank You.
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[FLEET72]

I'd start by pulling the covers and comparing them. Like Longhair says, they are most likely the same.
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[LONGHAIR]

Unless you are swapping for a gear ratio change, which you haven't mentioned, there is no point.....everything is the same.
If this is for a gear ratio change, swap the entire housing, not the internals.