Ok I've searched a lot on this. I picked up some cheap 31x10.50 15 Km2's from my buddy. about 1,000 miles on them. Baught some cragar soft 8's with 4" backspacing. Ground my calipers a little to clear. Put jeep back on the ground and the tires rub the fascia and hit the splash gaurd. I have IRO 3" springs, JKS front adj trac bar. I will trim a little from the fascia but I don't want to cut apart the splash shield. Loking at going to 4" if I have to. What are you guys running and how did you fix the rubbing? Thanks guys. I've seen the chart for lift also. I'm currently running LT245/75r16 mt with no rubbing.