This Chevrolet Silverado 3500HD has a strong Gas V8 6.6L/ engine powering this Automatic transmission. ENGINE, 6.6L V8 WITH DIRECT INJECTION AND VARIABLE VALVE TIMING, GASOLINE (401 hp [299 kW] @ 5200 rpm, 464 lb-ft of torque [629 N-m] @ 4000 rpm) (STD), Wireless Phone Projection for Apple CarPlay and Android Auto, Windows, power rear, express down (Not available with Regular Cab models.).*This Chevrolet Silverado 3500HD Features the Following Options *Window, power front, passenger express down, Window, power front, drivers express up/down, Wi-Fi Hotspot capable (Terms and limitations apply. See onstar.com or dealer for details.), Wheels, 18 (45.7 cm) machined aluminum with Silver painted accents, 6-spoke (Requires single rear wheels.), USB Ports, 2, Charge/Data ports located on instrument panel, Transmission, Allison 10-Speed automatic (Standard with (L8T) 6.6L V8 gas engine.), Transfer case, two-speed electronic shift with push button controls (Requires 4WD models.), Trailer brake controller, integrated, Tires, LT275/70R18E all-terrain, blackwall (Requires single rear wheels.), Tire, spare LT275/70R18 all-terrain, blackwall (Included and only available with (QF6) LT275/70R18E all-terrain, blackwall tires or (QF9) LT275/65R20 all-terrain, blackwall tires with (E63) Durabed, pickup bed single rear wheel models. Included when (QFG) LT275/65R20 blackwall off-road tires are ordered without (ZW9) pickup bed delete. Available to order when (ZW9) pickup bed delete and (QF6) LT275/70R18E all-terrain, blackwall tires are ordered with single rear wheel models. Not available with dual rear wheels.).