2019 Chevrolet Silverado 3500HD LTZ Silver Ice Metallic We are a family owned store and have been servicing Northern California since 1954. Allison 1000 6-Speed Automatic, 4WD, Jet Black Leather. 4WD Allison 1000 6-Speed Automatic Duramax 6.6L V8 Turbodiesel Odometer is 3257 miles below market average!