I've got them on my dually. Second set. I love them. First set was on it when I bought it, so no clue how many miles they had. The only actual reason I bought them this time is bc I was at work and blew a front tire, and the cooper factor is about 4 blocks from work, and their service center could get me in right now, vs a 3hour wait everywhere else. I was going to go w goodyear m/ts.