I got my 1990 XJ 4.0L Renix Last Summer. It Has a 3" Lift With 31" Tires. I have used it for minor off-roading. I was wondering how well my jeep will do climbing over some bigger rocks, and rougher trails. I don't plan on doing any really advanced trails, more like medium level trails. I live in Utah, and we have a lot of cool terrain I'm ready to check out this summer. Just a couple questions. I don't really plan on climing through the mud. I have A/T tires, would it climb better with an M/T? Should I consider a winch for the less advanced trails? Do the rear leaf springs still handle trails pretty well? I know coil springs would be better. Basically how much abuse can my Jeep take the way it is now?