No, TJ model equipment won't fit as far as I know, but Skibum wheels a JK so maybe he knows something that I don't know since I've never owned one. You will want some type of plating under your rig though. I know some guys relocate the evaporative canister or put a skid around it. Rock sliders with rails that stick out a few inches help keep the rocks out of the lower sections of doors when your tipped to one side or the other. I'll let the JK guys give recommendations on brands, etc. since I've never looked up those parts.