Summit White 2018 Chevrolet Silverado 3500HD Work Truck 4WD Allison 1000 6-Speed Automatic Duramax 6.6L V8 Turbodiesel, 4WD, Dark Ash Vinyl. PRICE INCLUDES Dealer discount and rebates. Check out this vehicle on our website for a breakdown of pricing. ** We are 15 minutes south of St. Louis. Everyone leaves happy!