The width and offset are on the backside of the wheel. If the wheel ois 20x9 and the offset is +20 that'll give you the least amount of rubbing. If you do the pinch weld mod you might be alright though. Personally I'd go 37x12.50x20. The Toyo MT's can run big. In this case their 37x13.50R20 is actually 14" wide.