My boss just picked up a set of these to replace the Nitto Terra grapplers (E rated) 285/65/18 tires he put on after we put a 2" RC leveling kit on his 2009 1500 4x4. He got over 70,000 miles out of the Terra's which impressed the hell out of me. Though he needed upper ball joints/a-arms. He has over 150,000 on his truck and is not easy on it. He was very religious about oil changes and tire rotations, his cousin owns a garage, which helps to keep the maintenance schedule accurate. I/we can only hope for similar results with the Ridge Grapplers.