Rear Suspension Problems of GMC Sierra 1500

Tl-the contact owns a 2015 GMC sierra equipped with bridgestone dueler h/t 684 ii , tire size:p255/70/r17, and dot number (na). The contact stated that he notice big clumps of missing in the middle of thread of tire in the rear driver side. In addition the contact stated it looked like someone cut pieces of the tires off the size of a quarter. The vehicle was taken to the dealership where it was diagnosed that the tires needed to be replaced and was able to identify the failure. The tires where not replaced or repaired. The manufacturer was notified of the failure. The failure mileage of the tire and the vehicle was 2,416. Ng.

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Tl the contact owns a 2011 GMC Sierra 1500. While driving various speeds, the contact heard an abnormal noise coming from the rear of the vehicle. The vehicle was taken to an independent mechanic who diagnosed that the shaft on the pinion gear was fractured. The vehicle was repaired. The manufacturer was notified of the failure and stated that nothing could be done because the warranty was expired. The dealer was not notified. The failure mileage was approximately 126,000.

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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.

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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.