Hopefully the experts here can help me with this question, My car cruises fine up to about 55 mph, above that it becomes bumpy and starts to vibrate, up to about 75 to 80 mph then it's fine again. it seems to come from the front wheels/suspension, but the steeringwheel feels fine no vibrations. Tires have been changes recently and are all balanced. And after that the car has been alligned. Running stock struts and eibach pro springs. everyting else on the suspension is still stock. Also Brakerotors en pads are varely new. And no sqeeling, so wheelbearing seems unlikely. What could cause this wobbling at higher speeds ?