I have a 2006 Ford Five Hundred, front wheel drive with the duratec. It was an old business vehicle and has 213,000 miles on it. It used to vibrate on the highway so I had the tires balanced and now it's gone, but ever since I had that done, there is now a wobble in the steering wheel at lower speeds ( like 30 mph ). If I take my hands of the wheel it will wobble left then right like 3/4 inch in either direction.