Time for new rubber. Overall, i have been happy with the Goodrich AT's that came on the truck. Looking at the new KO2's Looking at others as well. Big O has their AT's at considerably less money, with a great hazard warranty. Anyone have any experience with the Big O tires? They do not look nearly as aggressive as the Goodrich. Not looking for a supper aggressive Mud tire, as i pull a trailer and do a lot of highway miles in addition to off roading here in Colorado, but still want a good off-road tire. Guess that's why they make All Terrain's! Thanks in advance!