I ran 33 x 12.5 R16.5 on chrome wagon wheels with no lift on the 80 K20. They would rub at the corner of the fenders if the body leaned or going over a bump. With 2" body lift you "should" be fine. Alot will depend on how sagged the springs are and what offset wheel you are going to use (the offset controls the outer "arc" of the tire while turning.