I have the Toyo open country on my 2500HD Chevy, one tire keeps going out of balance, got 6 ounces on it now, 'Ole Les's store won't replace it. Second prob with them was a tire swap between a friends car and mine, I was about to junk a car with good tires, he wanted them for his. His take off tires got "lost", and the tires I got back for the junker were flat, had exposed steel etc. Problem was the car was going to the yard on a dolly, flats wouldn't do it. They gave me tires that held air only when I asked to use the phone to call the Sheriff about stolen tires.