I have a readylift 2.25 leveling kit with 305/55/22R tires on it. The only time i rub is when im in reverse and i go too fast while the wheel is turned. The rims are 22 x 9.5 with a 5.84 backspace. I believe the offset is 18mm? The only reason i posted that info is because the backspacing and offset determine how close the rim/tire is to the inside of the wheel well, which affects if the tire may rub on your truck even though it doesnt on mine.
Hope this helps
Hope this helps
