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Re: Confused about 4wd
Neon Rt is correct about your differentials being open. Nothing wrong with yours, its just the nature of the beast. Most all stock 4X4 are this way standard but most also offer a limited slip differential as an option. The Trac Loc is the limited slip that is optional for Jeep and Chrysler products.
The Trac loc isnt a very aggresive limited slip and it has clutches that can wear out after a few thousand miles. It will cost you around $400-$500 for parts and labor to have one put in your rear axle. Search the www for "differentials", try Randys Ring and Pinion or Drivetrain Direct. There are literally hundreds of places to buy differentials. Personally I wouldnt waste the money on a Trac Loc. If you almost got stuck in mud open, you will almost get stuck in mud with the Trac Loc, its not going to make much difference at all. If you are going to spend the money of installing it, and you want a limited slip, get a True Trac, if its available for you axle. Its a little more aggresive and should last you forever.
Changing transfer cases is not going to do anything for you in the mud. The fulltime option has an open differential in the t-case so you really only have true one wheel drive while in full time. Locking hubs have nothing to do with open differentials. Your XJ hubs are always locked.
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