I an currently purchasing an RE 3.5 Super Ride full spring pack kit for my 2001 XJ with NP231 and 8.25. My questions concern my ability to wheel and flex with a set of 31x10.5 mud tires on 15x8 AR Baja rims with slightly less backspacing than stock. Right now with a set of 235/75/15's they stick out of the wheel wells about an inch and I am already having rubbing issues in the rear, i.e. every time I hit a bump my rear flares get ripped off.. The stock rear springs are sagging, but I am concerned that even with the 3.5 inch lift the 31's will rub the stock flares hard during mild articulation. Does anyone else have and wheel with this setup or a similar one? I only do mild wheeling, no rocks, mostly mud and forest trails. It is my daily driver for school and work. Any info would be great.