Four wheel drive
Transfer case, electronic Autotrac with rotary dial control (Included with 4WD models only.)
Body, Pick Up Box
Cooling, external engine oil cooler
Frame, fully-boxed, hydroformed front section
Steering, Electric Power Steering (EPS) assist, rack-and-pinion
Brakes, 4-wheel disc with DURALIFE rotors, 4-wheel antilock
Exhaust, aluminized stainless-steel muffler and tailpipe
Air cleaner, high-capacity
GVWR, 7100 lbs. (3221 kg) (Requires 4WD models and (LV3) 4.3L EcoTec3 V6 engine.)
Battery, heavy-duty 730 cold-cranking amps/70 Amp-hr, maintenance-free with rundown protection and retained accessory power
Rear axle, 3.42 ratio (Standard on 4WD (LV3) 4.3L EcoTec3 V6 engine. Available with (L83) 5.3L EcoTec3 V8 engine.)
Vehicle control, hill descent
Underbody shield, transfer case protection (Requires 4WD models.)