Four wheel drive
Brakes, 4-wheel disc with DURALIFE rotors, 4-wheel antilock
Vehicle control, hill descent
Rear axle, 3.08 ratio (Requires (L83) 5.3L EcoTec3 V8 engine. Not available with (RD2) chrome wheels or (RD4) 20" polished-aluminum wheels.)
Differential, heavy-duty locking rear
Battery, heavy-duty 720 cold-cranking amps/80 Amp-hr, maintenance-free with rundown protection and retained accessory power
Steering, Electric Power Steering (EPS) assist, rack-and-pinion
Cooling, auxiliary external transmission oil cooler
Exhaust, aluminized stainless-steel muffler and tailpipe
GVWR, 7200 lbs. (3266 kg) (Requires 4WD models and (L83) 5.3L EcoTec3 V8 engine or (L86) 6.2L EcoTec3 V8 engine. Required with (NHT) Max Trailering Package on 2WD or 4WD models.)
Underbody shield, transfer case protection (Requires 4WD models.)
Transfer case, electronic Autotrac with rotary dial control (Included with 4WD models only.)
Frame, fully-boxed, hydroformed front section
Air cleaner, high-capacity
Body, Pick Up Box
Cooling, external engine oil cooler