Tire size
 

Im looking to get new wheels and tires on my 2011 F-150 Super Cab XLT. Im trying to figure out what are the biggest tires that I can put it on my truck after I put a leveling kit? I want to go as big as I can with out rubbing the fender wells.

IMO, stick with 33's without a lift. I don't think it looks good when the wheel wells are over stuffed. I also wouldn't go with any more than a 2 inch level kit.