Mechanical Features
- Engine, Vortec 5.3L V8 SFI FlexFuel with Active Fuel Management, capable of running on unleaded or up to 85% ethanol (with gas - 320 hp [239 kW] @ 5400 rpm, 335 lb-ft of torque [454 N-m] @ 4000 rpm, with E85 ethanol - 326 hp [243 kW] @ 5300 rpm, 348 lb-ft of torque [472 N-m] @ 4400 rpm), aluminum block (Requires 4WD 1/2 ton models.)
- Engine, Vortec 6.0L Variable Valve Timing V8 SFI (352 hp [262.5 kW] @ 5400 rpm, 382 lb-ft of torque [515.7 N-m] @ 4200 rpm) (Requires 3/4 ton models.)
- Engine, Vortec 5.3L V8 SFI FlexFuel with Active Fuel Management, capable of running on unleaded or up to 85% ethanol (with gas - 320 hp [238.6 kW] @ 5400 rpm, 335 lb-ft of torque [452.2 N-m] @ 4000 rpm, with E85 ethanol - 326 hp [243.1 kW] @ 5300 rpm, 348 lb-ft of torque [469.8 N-m] @ 4400 rpm), iron block (Requires 2WD 1/2 ton models.)
- Transmission, 6-speed automatic, heavy-duty, electronically controlled with overdrive and tow/haul mode (Requires 1/2 ton models.)
- Transmission, 6-speed automatic, heavy-duty, electronically controlled with overdrive and tow/haul mode (Requires 3/4 ton models.)
- Rear axle, 3.73 ratio (Requires 3/4 ton models.)
- Rear axle, 3.08 ratio (Requires 1/2 ton models. Not available with (K5L) Heavy-Duty Trailering Package.)
- Suspension Package, Premium Smooth Ride (1/2 ton models only.)
- Suspension Package, Handling/Trailering, heavy-duty (3/4 ton models only.)
- Rear wheel drive
- 4-wheel drive
- Transfer case, active, 2-speed electronic Autotrac with rotary controls, includes neutral position for dinghy towing. (Requires 4WD models. Included and only available with (K5L) heavy-duty trailering package and standard on 3/4 ton models.) (Requires 4WD models. Included and only available with (K5L) heavy-duty trailering package or (Z71) Off-Road Suspension Package and standard on 3/4 ton models.)
- Transfer case, active, single-speed, electronic Autotrac with rotary controls, does not include neutral. Cannot be dinghy towed. (Requires (GU4) 3.08 rear axle ratio. Not available on 2WD models, 3/4 ton models or with (K5L) heavy-duty trailering package.)
- Battery, heavy-duty 600 cold-cranking amps, maintenance-free with rundown protection and retained accessory power
- Alternator, 145 amps (Not available on 1/2 ton models.)
- Alternator, 160 amps (Standard on 1/2 ton models. Included and only available with (VYU) Snow Plow Prep Package on 4WD 3/4 ton models. Not available on 2WD 3/4 ton models.)
- Trailering equipment includes trailering hitch platform, 7-wire harness with independent fused trailering circuits mated to a 7-way sealed connector and (VR4) 2" trailering receiver
- Cooling, external engine oil cooler, heavy-duty air-to-oil integral to driver side of radiator (Included and only available with (K5L) Heavy-Duty Trailering Package on 1/2 ton models. Included on all 3/4 ton models.)
- Cooling, auxiliary transmission oil cooler, heavy-duty air-to-oil (Included and only available with (K5L) Heavy-Duty Trailering Package on 1/2 ton models. Included on all 3/4 ton models.)
- Trailer brake controller, integrated (Available on ½ ton models, standard on ¾ ton models. Requires (K5L) Heavy-Duty Trailering Package.)
- Recovery hooks, front, frame-mounted (Not available on 2WD 1/2 ton models.)
- Recovery hooks, front, frame-mounted
- GVWR, 7200 lbs. (3266 kg) (Requires 2WD 1/2 ton models.)
- GVWR, 7400 lbs. (3357 kg) (Requires 4WD 1/2 ton models.)
- GVWR, 8600 lbs. (3901 kg) (Requires 3/4 ton models.)
- Suspension, front coil-over-shock with stabilizer bar (1/2 ton models only.)
- Suspension, front independent with torsion bar (3/4 ton models only.)
- Suspension, rear multi-link with coil springs (1/2 ton models only.)
- Suspension, rear multi-stage leaf springs (3/4 ton models only.)
- Steering, power
- Brakes, 4-wheel antilock, 4-wheel disc, VAC power (1/2 ton models only.)
- Brakes, 4-wheel antilock, 4-wheel disc with hydroboost (3/4 ton models only.)