Engine, Vortec 6.0L Variable Valve Timing V8 SFI E85-compatible FlexFuel capable of running on unleaded or up to 85% ethanol (360 hp [268.4 kW] @ 5400 rpm, 380 lb-ft of torque [513.0 N-m] @ 4200 rpm) with (E63) wideside pickup box; (322 hp [240.1 kW] @ 4400 rpm, 380 lb-ft of torque [513.0 N-m] @ 4200 rpm) with (ZW9) pickup box delete (Does not include E85 capability with (ZW9) pickup box delete.)
Air cleaner, high-capacity
GVWR, 9500 lbs. (4309 kg) (Requires (L96) Vortec 6.0L V8 SFI engine or (LC8) 6.0L V8 SFI Gaseous engine. Not available on TC20903 or TK20943 models.)
Battery, heavy-duty 600 cold-cranking amps, maintenance-free with rundown protection and retained accessory power
Rear axle, 3.73 ratio
Brakes, 4-wheel antilock, 4-wheel disc
Cooling, external engine oil cooler heavy-duty air-to-oil, integral to driver side of radiator tank
Frame, fully-boxed, hydroformed front section
Steering, power, recirculating ball
Transmission, 6-speed automatic, heavy-duty, electronically controlled with overdrive and tow/haul mode. Includes Cruise Grade Braking and Powertrain Grade Braking (Requires (L96) Vortec 6.0L V8 SFI engine or (LC8) 6.0L V8 SFI Gaseous engine.)
Suspension, front independent, torsion bar
Cooling, auxiliary external transmission oil cooler heavy-duty air-to-oil
Four wheel drive
Exhaust aluminized stainless-steel muffler and tailpipe
Transfer case, electronic shift with rotary dial controls (Requires 4WD models)
SAFETY
StabiliTrak, stability control system with Proactive Roll Avoidance and traction control includes electronic trailer sway control and hill start assist
OnStar, 6 months of Directions and Connections plan 6 months of Directions and Connections plan, includes, Automatic Crash Response, Emergency Services, Crisis Assist, First Assist, Injury Severity Predictor, Stolen Vehicle Assistance, Stolen Vehicle Slowdown, Remote Ignition Block, Remote Door Unlock (requires power locks), Roadside Assistance, Remote Horn and Lights, Turn-by-Turn Navigation with OnStar eNav, Destination Download (requires navigation radio), OnStar Vehicle Diagnostics, Hands Free Calling and available OnStar RemoteLink mobile app. (Also includes Stolen Vehicle Slowdown when (LML) or (LGH) Duramax 6.6L Turbo Diesel V8 engine is not ordered. Not available with a ship-to of Puerto Rico or the Virgin Islands. Visit onstar.com for details and system limitations.)
Door locks, rear child security (Crew Cab models only.)
OnStar Turn-by-Turn Navigation
OnStar, 6 months of Directions and Connections plan 6 months of Directions and Connections plan, includes, Automatic Crash Response, Emergency Services, Crisis Assist, First Assist, Injury Severity Predictor, Stolen Vehicle Assistance, Stolen Vehicle Slowdown, Remote Ignition Block, Remote Door Unlock (requires power locks), Roadside Assistance, Remote Horn and Lights, Turn-by-Turn Navigation with OnStar eNav, Destination Download (requires navigation radio), OnStar Vehicle Diagnostics, Hands Free Calling and available OnStar RemoteLink mobile app. (Also includes Stolen Vehicle Slowdown when (LML) Duramax 6.6L Turbo Diesel V8 engine is not ordered. Not available with a ship-to of Puerto Rico or the Virgin Islands. Visit onstar.com for details and system limitations.)
Automatic Crash Response
Stolen Vehicle Assistance
Air bags, frontal, driver and right-front passenger (Always use safety belts and the correct child restraints for your child's age and size, even in vehicles equipped with air bags. Children are safer when properly secured in a rear seat in the appropriate infant, child or booster seat. See the Owner's Manual and child safety seat instructions for more safety information.)
Daytime Running Lamps with automatic exterior lamp control
Air bags, frontal, driver and right-front passenger (Always use safety belts and child restraints. Children are safer when properly secured in a rear seat in the appropriate child restraint. See the Owner's Manual for more information.)
Tire Pressure Monitor System (does not apply to spare tire)