Ward's 10 Best Engines and Propulsion Systems. Boasts 21 Highway MPG and 15 City MPG! This GMC Sierra 1500 boasts a Gas V8 5.3L engine powering this Automatic transmission. WHEELS, 17 X 8 (43.2 CM X 20.3 CM) PAINTED STEEL, SILVER (STD), TRANSMISSION, 6-SPEED AUTOMATIC, ELECTRONICALLY CONTROLLED with overdrive and tow/haul mode. Includes Cruise Grade Braking and Powertrain Grade Braking (STD), SIERRA VALUE PACKAGE includes (PCI) Convenience Package and (Z82) Trailering Package.*This GMC Sierra 1500 Comes Equipped with These Options *ONSTAR AND GMC CONNECTED SERVICES CAPABLE, ENGINE, 5.3L ECOTEC3 V8 WITH ACTIVE FUEL MANAGEMENT (355 hp [265 kW] @ 5600 rpm, 383 lb-ft of torque [518 Nm] @ 4100 rpm), DIFFERENTIAL, HEAVY-DUTY LOCKING REAR, Windows, power rear, express down (Not available on Regular Cab models.), Wheels, 17 x 8 (43.2 cm x 20.3 cm) painted steel, Silver, Wheel, 17 x 8 (43.2 cm x 20.3 cm) full-size, steel spare, USB port, located on instrument panel, Transmission, 6-speed automatic, electronically controlled with overdrive and tow/haul mode. Includes Cruise Grade Braking and Powertrain Grade Braking (Included and only available with (LV3) 4.3L EcoTec3 V6 engine or (L82) 5.3L EcoTec3 V8 engine.), Tires, 255/70R17 all-season, blackwall, Tire, spare 255/70R17 all-season, blackwall (Included with (QBN) 255/70R17 all-season, blackwall tires.).* Stop By Today *Test drive this must-see, must-drive, must-own beauty today at Nimnicht Buick GMC, 11503 Philips Hwy, Jacksonville, FL 32256.