I just installed Goodyear Endurance on my 26' travel trailer. We pulled it about 1500 miles down the Natchez Parkway and back as well as lots of side travel. These tires are outstanding. The trailer is rock solid behind the truck. They cut through water on wet roads. I highly recommend them.
I got mine at Discount Tires during their Memorial Day sale. They were $104 each, but with rebates it worked out to about $90 per tire installed. Made in America. And Goodyear has a reason to stand by these tires, since they are answering the call of so many people who are tired of poor quality third world manufactured tires.