Rear Suspension problems of the 2007 GMC Sierra 1500

The contact owns a 2007 GMC Sierra 1500. The contact was driving 20 mph and attempting a left turn when the rear axle snapped, causing the right rear wheel to fracture from the vehicle. The vehicle was towed to the contacts place of residence. The manufacturer was contacted who advised the contact that he would to pay for the vehicle to be towed to the dealer and have a diagnostic test performed to determine the cause of the failure. The vehicle was not repaired. The failure mileage was 116,839.

This is a constant and ongoing issue with the vehicle. When driving the vehicle on the highway or road at speeds above 15 or 20 mph the front suspension will shake violently when hitting bridge expansions, any sort of road bump, man hole covers with minimal edges, etc. The violent shaking in the suspension will then stop and not be felt during normal smooth highway or road travel but recurs each and every time road bumps are encountered. The shaking is violent and feels as though the whole front end of the vehicle is about to fall off. This has been happening for more than a year now. I have had the vehicle examined by the dealer and independent shops and they all say the suspension components all look intact and in good service condition.