I bought a new Montana fifth-wheel in March of 2011. In the spring of 2012 on our way to Virginia we had four Good Year factory equipped tires go bad all at the same time. I bought four Good Year G614 tires at that time and hope I have good results with these over the next few years. We made a three thousand mile trip that summer and this past summer we made a fifteen hundred mile trip and so far all is great. BTW the G614 tires required me to buy four new wheels rated at 110 PSI as the old wheels were rated at 80 PSI.
Also let me add that Good Year paid for damages to my camper when a Good Year Marathon lost its tread and knocked a hole in the floor of my camper and did over $4,000 worth of damage. This was in 2008 when I had a Forest River Wild Cat. I had rather do business with a company that will stand behind their product with that kind of regard for their customer.
So when I bought the Montana and it had Good Year tires on it I just sucked it in and went with it. When I was stuck in a Virginia campground with four bad tires all it took was a phone call to Customer service and the problem was taken care at no cost to me. It helped me to get home so I could buy the G614 tires and a new set of wheels that would handle the 110 PSI tires