31x10.5s
97 4dr up country stock wheels and no lift.
Firestone Destination MTs (awesome tires) measure 31 inches tall on the Jeep.
Minor trimming on left front bumper end cap, rolled quarter seam over on rear of the wheel wells.
Went to Colorado Springs area when they were one week old. Had left front tire at least a foot of the ground at one point. Went on a trail that had lots of rocks. Put scrape on Gas Tank skid, Pushed tie bar up untill it hit my steering damper and dented my front skidplate.
Do they rub?
Yes, the most they limit my articulation is when the rears rub on the inside of my quarter panels.
Did it affect my performance? No!!
first day had half tank of gas and jeep full of wedding gifts, second day unloaded the gifts but had 100lbs of dogs in the far back ran half tank of gas again.
Jeep went everywhere I asked it to, even when I was starting to wonder if I would make it out of one trail, and my wife was telling me "I told you not to go down this one", The XJ kept crawling on.
Recomendations:
Watch the full lock in the parking lots
Load your Jeep intelligently...eg, dont put all the heavy stuff in the rear if you can help it, load the rear seat area first. I also run a long cargo box on the top and load that evenly.
Definately roll the seam on the quarters or they will play hell on your tires.
Live with the occasional growling and have fun
Joel