Budget 8.5 10bolt posi/limited slip diff?

[jimbo]

I have an '85 silverado and am looking into stepping up the factory 2.73 ratio as well as adding a limited slip differential.  I just put 3.90's and a detroit truetrac diff in the '04 sierra, and while the truetrac is very impressive, it was hard on the wallet.  What more budget minded options do I have for the older truck?  I would really be interested in junkyard options.

[Captkaos]

If you find a junkyard set that has the right gear and an open diff, you can add a drop in locker for about the same price as a new one but none of the setup cost.

[jimbo]

Yeah, I just don't want to run a locker in this, as it is a work truck, especially with the 28spline axles.  I think I'm just going to keep my eye open for a complete rear with a slip in it.

[Captkaos]

it would be like finding a needle in a haystack to find a locker in a factory axle and for a 10bolt it will still be a locker as gov-locs are the only ones in a 10 bolt from the factory.

[jimbo]

Really?  I assumed there would be a few non gov loc limited slip rears out there with a steeper gear, that I could poach to set mine up.

Something like this:
http://dallas.craigslist.org/dal/pts/1316388962.html

[Captkaos]

No 10 bolt came from the factory with a Non gov-loc unless it was an open rearend.  The gov-loc IS a limited slip for the 10bolts.

[jimbo]

No 10 bolt came from the factory with a Non gov-loc unless it was an open rearend.  The gov-loc IS a limited slip for the 10bolts.

Oh ok, thanks.