XJ's are ok.... I have two lol. look out of runs in open run section and come out see what your xj can do, but make sure you have tow points, no need for a winch but tow points are a must. I made the mistake of not having any when I first got into the sport, and being pulled out by the axle is not the preffered method. If you need advise on what upgrades and mods to start out with post up you questions in the tech section and we'll help you out.
and welcome to the jeep addiction.