I am currently running 35x12.50x15 radial all terrain tires mounted to 15x10 wheels. The wheels are the wagon wheel type painted black. I am unsure of the brand or history since I bought the blazer a few months ago. I cannot get this wheel-tire combo to balance out. I have had them balanced twice with no improvement. Does anyone have a way to check for a bent rim? I have had someone drive beside me and they say the tires and wheels do not appear bent. What about the possibility of an out of round tire? Any help??