Change to limited slip

It's nice to have, but there are caveats. First, on ice it can be a bitch and a half. What happens is that when the first wheel looses traction it transfers the demand to the one that isn't slipping (as designed). Now that one starts slipping and both wheels (and the whole rear end start looking for the ditch. It's good to get rolling, but it can be really testy driving up a hill. You'll have to learn how it acts before you decide that on balance it is a good thing. Second, the clutch packs wear fairly quickly - I doubt that one that is used very hard will last more than 70-80K without becoming essentially an open diff. It's not that expensive or difficult to replace the clutches - I looked at mine when I first bought but decided that it had spent it's life as a highway that didn't stress the clutches - but it does take some sweat time.