I got call from the dealer. They are saying 3/4 tires are bad. One is a 3. The two are just above 20 and one is 40. Unfortunately I did not buy my tires at the dealership. So I called the place I bought them and they are saying that the road force balancing is not a definitive answer that a tire is defective. So now I have prove to them that something is bad with their tire.