I know a guy that got 80 or 90 thousand out of a set of those on his hot shot truckI run the MIchelans on the F-250 in 10 ply to pull the RV. I got 60,000 out of the first set and running up on 20,000 on the second set with no appreciable wear showing yet. All terrain tires that have done well and are silent going down the road.
I could have easily got another 5000 miles from the first set but with a multi state trip coming over a couple of months, decided to get them changed out early so we wouldn't be at the mercy of some tire dealer we don't know.
The dealer at home does free repair and rotation if we buy from him for the life of the tires.