Got my trail trouble Boss Dec 30th. 1st. week good 2nd. in the shop. 6.2 ten speed between 35 and 45 can't find the right gear. It will shift up then down again and again making the truck vibrate. Dealership doesn't know what to do. First Chevrolet I have bought in 20 years. When you look at a small house for a TRX or that poor thing FORD put out there with the V6, Trucks guys do not have many options.