Vibration Issue

A lady ran over a mattress on the highway and became hung up under the car, she decided to just keep going down the highway, thinking it would just fall off sooner or later. The ensuing jumble finally whipped around enough to put a tear in the gas tank. The subsequent lack of fuel is what finally brought this vehicle to a stop. She had driven it 30 miles with the 60lb tangle of wire and fabric wrapped around the driveshaft. The vehicle had to be towed to a dealership. When asked about the problem, the puzzled looking lady complained that the vehicle had a kind of "shimmy" when driving at high speeds. This is what the dealership found . . .