We go with Les Schwab tires. Found their top E range tires to be very good. Tires do fail if you loose one you can pull into any store in any state you find them and just tell them you want both on that side replaced so beside getting some money because the tire failed they will also give you a trade in on the other tire/s as its still good for farm use. We also like that they repair, rotate, check, rebalance and air them for free any time no matter what state you find them in. The service is worth a lot and their road service has been good too..