I got my truck back!!!!!! I would say that the vibration is about 97% fixed. Don't feel it in the seat is the steering wheel, but can see and feel it in the center console. Gonna have to get on couple differant smooth highways before I give final verdict though. They said got road force down to 8,8,10 and 14, with the goodyears. Told them I'd drive it few days and see if it stays this way or if it changes again like it has before. That s all I know. Hope it helps someone.