Looking at the Toyo AT3 in 255/80R17 my only concern is the rim widths. Aftermarket rims in 7.5/8 are limited. One of the rims I have my eye on are 8.5. Toyo says that the max rim width is 8.5. My main concern is if I were to air down. Does any one have any input into a 255/80R17 aired down on a...