Justcruzin

00t444e

If it's an open rear the easiest thing to do would be to put in a lunch box locker, Spartan, Aussie, or Lock Right.

SatiricalHen

You can pull the cover off and change the gear oil and you'll be able to see if it's a limited slip or not then, or you might be able to peak inside the drain plug and see if it's rounded or squared off from there. squared off is limited slip. It'll be pretty hard to find a 3.07 since manuals were rarer than autos and limited slips were rare in general. Junkyard, Craigslist, Facebook market place, or installing an aftermarket limited slip are probably your best options for getting a limited slip. When I replaced the axle in my truck I put a 3.55 axle in and I'm happy I went with that over 3.07s. If you plan any bigger tires 3.55 would help in that manner as well.

00t444e

You can put a limited slip carrier from a 3.55 in your axle with 3.07s since the 8.25 doesn't have a carrier break, but I agree that changing to 3.55s would be a good idea.

Justcruzin

SatiricalHen

Correct if it is 4wd. You can put a limited slip from a 3.55 into a 3.07, but it isn't just a few bolts and toss it in the diff. It requires setting up the gears which is not very easy to DIY. At least around here it's cheaper to buy 2 axles from the junkyard than to pay a shop to set up gears in one axle.

Justcruzin

00t444e

All you have to do when you swap carriers is measure the backlash, and set it back the same as it was before after you install the new one.

SatiricalHen

Also, need to get the bearing preload correct. That's in a perfect world where all bearings are still perfect, but many axles I've ended up working on had play in the pinion which meant new pinion bearings were needed.

00t444e

The pinon pre-load won't change, you don't bother the pinion when you swap carriers.

SatiricalHen

I didn't say a thing about pinion preload. I said bearing preload as in carrier bearing preload. The point I was making is there are tools require that not everyone has and you can't simply unbolt the carrier and bolt a new one in, there is more to it than just a wrench and some bolts.

Red1992XJ

Few quick questions: Is this going to be a DD or will this be offroad most of the time? Do you plan on keeping this for many years or just as a beater for awhile?

Usually a clutch based limited slip rear end that you find in the junkyard may very well be worn out, in which case it would have to be rebuilt. In that case it may be more economical to change the carrier, and if necessary, regear while you are in there. You may want something like a Detroit Truetrac if the vehicle will be used primarily on road. If you are going to be primarily offroad, then perhaps a locker will be a better choice.

The best thing, like you said, would probably be to find a good Jeep or 4X4 shop that does this kind of work often. They could easily do the work for you if you are not familiar with the job. It may cost a bit, but when done right, the axles will give you years of trouble free service.

Justcruzin

Justcruzin

SatiricalHen

95 will only be 27 spline and you need the 29 spline. Some 96 are 27 spline and some are 29 spline, but 97-01 are 29 spline.