well I wanted to go larger to slow my speedo down just a bit, my tires now are 275/70/18, found out real quick, theres not much to choose from, I have a friend that owns a Big O tire shop, and decieded to go with the Big O ATs, with the new tread pattern, I cant find any pics of it on their web site, but they kinda look like the procomp Xtreme AT. Nice truck by the way, same as mine but short box.