33/12.5/20's with -44 rub up front stock height. even with stops welded on. a 305 somethings on a 20x9 should work well.
On my pos 24v I have 20x9s with 305/55/20. They rub the inner fenders ever so slightly when turning. Stock worn out coils in the front.
All depends on back spacing of wheel. 20x9 with 5.5 to 5.75 bs will not rub bumper or fender liner with a 13.5 tire even. Will slightly rub on control arm at full lock.
make sure you select 8 lug when ordering....