Engine, 5.3L EcoTec3 V8 with Active Fuel Management, Direct Injection and Variable Valve Timing, includes aluminum block construction (355 hp [265 kW] @ 5600 rpm, 383 lb-ft of torque [518 Nm] @ 4100 rpm; more than 300 lb-ft of torque from 2000 to 5600 rpm)
Rear axle, 3.08 ratio (Standard and only available on (L83) 5.3L EcoTec3 V8 engine. Not available with (RD3) 20" ultra bright machined aluminum wheels, (NZP) 20" chrome clad aluminum, (RD5) 20" polished aluminum, (NZH) 20" ultra bright machined aluminum with painted accents or 22" LPO wheels.)
GVWR, 7200 lbs. (3266 kg) (Requires a Crew Cab or Double Cab 4WD model and (L83) 5.3L EcoTec3 V8 engine or (L86) 6.2L EcoTec3 V8 engine.)
Differential, heavy-duty locking rear
Transfer case, active, 2-speed electronic Autotrac with rotary controls, includes neutral position for dinghy towing (Included with 4WD models only.)
Suspension Package
Four wheel drive
Cooling, external engine oil cooler
Cooling, auxiliary external transmission oil cooler
Battery, heavy-duty 720 cold-cranking amps/80 Amp-hr, maintenance-free with rundown protection and retained accessory power
Frame, fully-boxed, hydroformed front section
Cargo tie downs (4), movable upper
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