I have P275 / 65R18 Goodyear tires. Treadware 500, Traction A, and Temp B.....and they only have 35,000 miles on them. We took a long 2,500 mile trip last year and it took a huge toll on tread ware...
I really don't think they do. The closest thing I've found is Michelins but even though they still have good rubber at 45K, they're worthless in the wet after that. Towing seems to be very hard on tires. I can tell you the Toyo's A/T's are no good for long wear either..