Had a set of Big O AT made and same as Cooper AT3 nade by Cooper lasted probably 50,000 miles they still had plenty of tread and never had an issue. My complaint was that I wanted somethng that was quiet and they were for about 10,000 miles then they started the AT rumble and whine. They were wearing even but just noisy. Have put on a set of Continental Terrain Contact load range E. They are extremely quiet and work great in rain, no snow yet but they are MS rated we shall see. My mileage went up about 2 miles per gallon with them on there. This is a 1/2 ton pickup just in case that matters to anyone.
