I had a bad vibration and took it in for service at the dealership where I bought it. My right front hub bearing went out and ruined my steering rack. The dealership replaced both front hubs and the rack!! (they put the SS rack in at no extra charge).They told me it was my 18's that ruined it. They were balanced and the alignment "was" alittle off. The warranty covered it, But has anyone else had a problem with a plus 3 combo??