Note, if you did not, you have to make sure the rubber bumper on the rear are tight against the tire. Depending on the rim backspacing you probably have to add to the bumpers to space them out. The bouncing around will wear things out. I have had a 33x12.5 for 5 years on the tailgate.
2003 TJ, 33" BFG AT, 2" BL, 2" BDS spring lift, Truck Lite headlights, Homemade sunrider top.