Vortec 5.3L V8 Engine

The 315-hp Vortec 5.3L V8 engine, standard in LTZ models, produces an impressive 338 lb.-ft of torque. Silverado offers the best V8 fuel economy of any full-size pickup.(1) This engine also incorporates durable features such as exteneded-life spark plugs and engine coolant(2) along with smart components like Electronic Throttle Control that provides outstanding throttle response, great reliability and improved efficiency.
1. Silverado 4x4 with available 5.3L V8 EPA estimated MPG 14 city, 19 highway. Based on EPA Estimates and 2008 GM Large Pickup segment. Excludes other GM Vehicles. 2. Maintenance needs vary with different uses and driving conditions. See the Owner's Manual for more information.

Automatic Locking Rear Differential

When rear-wheel slippage is detected at lower speeds, the available GM segment-exclusive(1) automatic locking rear differential allows additional traction on snow, mud and ice, or even a wet boat ramp. If one of the rear wheels has traction while the other does not, the locking rear axle automatically sends power to the wheel with grip to move the vehicle.
1. Based on 2008 GM Large Pickup segment and competitive information.

Heavy-Duty Trailering Equipment

Available heavy-duty trailering equipment makes getting hitched easy. Features include:
* A hitch platform and two-inch receiver that are twice as durable as the previous generation Silverado 1500
* Seven-wire harness (includes wires for parking lamps, backup lamps, right-turn lamp, left-turn lamp, electric brake lead, battery and ground) mated to seven-way sealed connector
* Trailer brake control jumper harness conveniently integrated under the instrument panel
* One-way sealed connector for center high-mounted brake lamp
* High-capacity air cleaner
* External transmission oil cooler

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