We just went up to AF Canyon yesterday, I should have let you know in advance. I rarely post on this site right now (getting more brave). I am a memeber of NAXJA and usually arrange trail rides in the Intermountain Chapter Forum. My rear bumper is homemade, but I know there are a few out there you can buy for bolt on. As for most products for MJ's, just get an XJ part and chances are it will fit your MJ.