I did the RV 2 inch leveling kit, kept my stock 18's and went with a 275/70/18 Nitto Trail Grappler MT. Inflated they measure out at 33.62 high and 11.10 wide. I have no issues at all. No rubbing whatsoever. Even made my truck flex a good bit while using it for hunting and no issues whatsoever. My truck is a 2015 Z71 Double Cab. Gonna add the 1.5 inch body lift by Zone just to get a little more room though.