Mine probably has the oem '94 clutch that it came from the factory with. There's some slippage, but that's been that way since '99 when I bought the jeep (actually I'm pretty sure I'm the one who caused the slippage in the first place ..Don't ask what I was doing to the thing on the solo test drive...).
I guess you do a replacement Luk or whatever, you'd want to resurface the flywheel, right? And can't use the "weights" on the Centerforce upgrade, I guess.