Z71 OFF-ROAD PACKAGE includes (Z71) Off-Road suspension with off-road tuned twin tube Rancho shocks, (JHD) Hill Descent Control and (NZZ) skid plates (transfer case and oil pan) Includes (QXT) LT265/70R17 all-terrain, blackwall tires and molded in color Black grille with Z71 logo., Z71 OFF-ROAD AND PROTECTION PACKAGE includes (Z71) Off-Road suspension with off-road tuned twin tube shocks, (JHD) Hill Descent Control and (NZZ) skid plates (transfer case and oil pan), (CGN) Chevytec spray-on bedliner, (AAK) All-weather Z71 floor liners, LPO, Z71 grille insert (replaces Bowtie emblem) and Z71 fender badge (replaces 4X4 decal on bed) Includes (PYV) 18 machined aluminum wheels and (QF6) LT275/70R18E all-terrain, blackwall tires., WHEELS, 18 (45.7 CM) MACHINED ALUMINUM with Silver painted accents, 6-spoke, WHEELHOUSE LINERS, REAR, USB PORTS, DUAL, CHARGE-ONLY (2ND ROW), TRANSMISSION, 6-SPEED AUTOMATIC, HEAVY-DUTY (STD), TIRES, LT275/70R18E ALL-TERRAIN, BLACKWALL, TIRE, SPARE LT275/70R18 ALL-TERRAIN, BLACKWALL, THEFT-DETERRENT SYSTEM, UNAUTHORIZED ENTRY, SUMMIT WHITE. This Chevrolet Silverado 2500HD has a strong Gas V8 6.6L/400 engine powering this Automatic transmission.