A replacement to the conventional 3500-level, the 2007 GMC Sierra 3500HD achieved new level of maximum towing and hauling capacity. A 353-horsepower, 6.0-liter V-8 gasoline provided standard momentum ...

I have a 2021 GMC Sierra 1500 AT4 with a 3.0 Duramax. I have had problems since the first month I bought the truck! They started out small, sensors and emissions, but recently, turned into a $ ...