Rear Suspension Shock Absorber problems of the 2005 GMC Sierra

The rear upper frame mount for the shock absorber failed due to corrosion. The non-paint rubberized coating placed on the entire frame of this vehicle is flaking off and exposing the bare steel to the elements. The frame of this vehicle has more rust than should be expected on a 50 year-old truck but it is less than eight years old. The truck is well taken care of and the body shows no signs of rust. The failure of the non-paint rubberized frame coating has rendered this 2005 Sierra un-drivable.