I had 37x11 ProComp Mud Terrains on the stock wheels with VERY little rubbing, only when turning the wheel ALL the way over.
I now have 37x13.5 22's and rub like all hell. The fender liners have been cracked where it rubs after about 4,000 miles,

not terrible but it sounds like crap when turning, especially in reverse, or when flexed at all.
I have not cranked the torsion bar but am going to do so soon and if that doesn't help, the leveling kit.
They look schweet tho
