10-Speed Automatic, 4WD, Jet Black With Kalahari Accents Leather.2022 GMC Sierra 3500HD AT4 Summit White 4WD Recent Arrival! 10-Speed AutomaticDuramax 6.6L V8 TurbodieselAt Friendly Auto Group, we say Expect more, Get more! So, what does that mean, exactly Expect a better selection of quality new and pre-owned vehicles, expect a better value, expect a better level of customer service, and expect to be treated as family when you visit us. With Fast, Friendly deal, you can save time by completing as many steps to your deal as you want online from the comfort of your home. Get a trade-in value, calculate your payment, and even secure an instant credit decision. Just click Calculate My Payment next to your vehicle of choice on our website to get started!