Four wheel drive
Transfer case, electronic Autotrac with rotary dial control (Included with 4WD models only.)
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
Battery, heavy-duty 730 cold-cranking amps/70 Amp-hr, maintenance-free with rundown protection and retained accessory power
GVWR, 7100 lbs. (3221 kg) (Requires Crew Cab or Double Cab 4WD models and (LV3) 4.3L EcoTec3 V6 engine.)
Capless Fuel Fill
Rear axle, 3.42 ratio (Standard on 4WD (LV3) 4.3L EcoTec3 V6 engine. Available with (L83) 5.3L EcoTec3 V8 engine. Required with (PDE) LT eAssist Package on CK15543 Crew Cab models.)