If you want an E rated AT with a warranty, take a look at Cooper AT3 or ATP (ATP is discount tire only). I have the LT275/65R20 ATP's and they have done very well on road (quiet), off road (traction), and held up to towing and hauling. They are on a diesel and the wear has been good so far. I believe even the E rated Cooper's have a 50,000 mile tread wear warranty, for what it's worth. Unless the last half of the tire goes bad or turns really loud, I'll put the same thing back on when they wear out.
