Good news had the 50,000 mile 2004 Aveo in the shop to get the timing belt replaced $240 dollars parts and labor, it would of been about $400 at the dealership so shop around. Anyway they balanced the tires and cleaned off all the hard dirt that stuck to the back of the tires (previous owners lived in the mountains just out of denver most likly off a dirt road) and the steering no longer shudders =D> P.S. Mechanic said timing belt was shot, get that thing replaced save the headache