2008 GMC Sierra Denali AWD 6.2 Truck

Transfer case, AWD, electronic automatic system (Requires TK10543 models.)
Pickup box, Wideside
GVWR, 7000 lbs. (3175 kg) (Requires TK10543 models.)
Suspension, rear 2-stage multi-leaf springs, semi-elliptic
Cooling, external engine oil cooler, heavy-duty air-to-oil, integral to driver side of radiator tank
Suspension Package, High-Performance, includes 36mm front stabilizer bar
Frame, hydroformed
Recovery hooks, front, frame-mounted
Trailering equipment, heavy-duty, includes trailering hitch platform, 7-wire harness (harness includes wires for: park lamps, backup lamps, right turn, left turn, electric brake lead, battery and ground) with independent fused trailering circuits mated to a 7-way sealed connector, instrument panel jumper wiring harness for electric trailer brake controller and 1-way sealed connector for center high-mounted stop/brake lamp
Skid Plate Package, includes front underbody shield starting behind front bumper and running to first cross-member, protecting front underbody, oil pan, differential case and transfer case, frame-mounted shields
Engine, Vortec high-output 6.2L Variable Valve Timing V8 SFI (403 hp [300.5 kW] @ 5700 rpm, 417 lb-ft of torque [565.4 N-m] @ 4300 rpm)
Skid Plate Package includes front underbody shield starting behind front bumper and running to first cross-member, protecting front underbody, oil pan, differential case and transfer case, frame-mounted shields
Exhaust, aluminized stainless-steel muffler and tailpipe with high-polished exhaust tip
Battery, heavy-duty 600 cold-cranking amps, maintenance-free with rundown protection and retained accessory power
Tire, spare P265/70R17 blackwall, includes steel wheel located at rear underbody of vehicle
All wheel drive
Suspension, front coil-over-shock with stabilizer bar
Rear axle, 3.42 ratio
Trailering equipment, heavy-duty includes trailering hitch platform, 7-wire harness (harness includes wires for: park lamps, backup lamps, right turn, left turn, electric brake lead, battery and ground) with independent fused trailering circuits mated to a 7-way sealed connector, instrument panel jumper wiring harness for electric trailer brake controller and 1-way sealed connector for center high-mounted stop/brake lamp
Transmission, 6-speed automatic, heavy-duty, electronically controlled with overdrive and tow/haul mode
Differential, heavy-duty automatic locking rear
PACKAGE
Sierra Denali Package
Suspension Package, High-Performance includes 36mm front stabilizer bar
SAFETY
OnStar, 1-year of Directions and Connections plan. Includes the innovative easy to use Turn-by-Turn Navigation services which provide voice-guided directions (where available). Also includes Automatic Notification of Air Bag Deployment, Stolen Vehicle Location Assistance, Emergency Service, Roadside Assistance, Remote Door Unlock, OnStar Vehicle Diagnostics, Hands-Free Calling, AccidentAssist, Remote Horn and Lights, Information and Convenience Services, and Driving Directions (OnStar services require vehicle electrical system (including battery), wireless service and GPS satellite signals to be available and operating for features to function properly. OnStar acts as a link to existing emergency service providers. Stolen Vehicle Location Assistance and Remote Door Unlock success varies with conditions. OnStar Vehicle Diagnostics available on most 2004 MY and newer GM vehicles. Diagnostic capability varies by model. Turn-by-Turn Navigation requires ABS and is not available in certain areas. Visit onstar.com or call 1-888-466-7827 for system limitations and details.)
Steering column, Tilt-Wheel, adjustable with brake/transmission shift interlock, color-keyed
Tire Pressure Monitoring System (does not apply to spare tire)
Air bags, frontal, driver and right-front passenger with Passenger Sensing System (Always use safety belts and the correct child restraints for your child's age and size. Even in vehicles equipped with air bags and the Passenger Sensing System, children are safer when properly secured in a rear seat. Never place a rear-facing infant restraint in the front seat of any vehicle equipped with an active frontal air bag. See the vehicles Owner's Manual and child safety seat instructions for more safety information.)
Air bags, head curtain side-impact, front and rear outboard seating positions with rollover sensor (Head curtain side air bags are designed to help reduce the risk of head and neck injuries to front and rear seat occupants on the near side of certain side-impact collisions. 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. See the vehicle's Owner's Manual and child safety seat instructions for more safety information.)
Brakes, 4-wheel antilock, 4-wheel disc
Seat, rear 60/40 folding bench (folds up), 3-passenger, folding (includes child seat top tether anchor)
StabiliTrak, stability control system with Proactive Roll Avoidance
Daytime Running Lamps, with automatic exterior lamp control