This problem with the Goodyear Wrangler tires has been going on since September 20, 2016, its been referred to the GMC Customer Care center and the representative and am awaiting his return call as to what they will do about these tires. The mileage was 6806 then and now its 13300 miles. Have had this vehicle in to the dealer 4 times about this problem. First time they re=balanced the tires, second time they re-balanced the tires and rotated them, third time they found that the vehicle had not been aligned from the factory and aligned the vehicle, fourth time they er-balanced the tires drove the truck, re-balanced the tires and put the worst one on the rear and the best ones on the front. Its still happening. Referred this to GMC on Friday May 19, 2017.