Anybody have any experience with the new Goodyear Endurance tires. I am looking at 225 75 15 E tires and the Endurance has it...Max load 2833 lbs, speed rating N (87mph). It looks like a stout tire, made in USA, and around $120 each, but kinda hard to find. Replacing the Chinese tires on my 10,000 lb 5th wheel.