I have a buddy who was driving in his 97. He was traveling down the road when all of a sudden this guy cuts him off like the bad of out hell. He slams on his brakes he was on the freeway doing about 60 mph. He hit one of those Road work ahead signs. His car is fine. We check it out. Only thing is I think his tires might be bad? Cuz when he drives theres thud sound like maybe there's a flat spot on his tires. What do you guys think. I checked for everything else it seems to be ok. Tire rods, shocks, springs, see, to be fine. Im thinking cuz his tires locked up that he got some sort of a flat spot on them. Let me know what you think.