you might try the 255/85/16. it measures out to be basically a 33x10x16 where the 235/85/16 is around a 31.5x9.5x16. so you gain a little bit. a friend of mine uses them on his f-350 dually instead of the stock 235s. he has a leveling kit on it but the change from a 235 to the 255 made a lot of...