Full Description: 4WD Ext Cab utility body MECHANICALRear axle, 3.73 ratioSuspension Package, Handling/Trailering, heavy-duty includes 35mm twin tube shock absorbers and 36mm front stabilizer barPickup box, WidesideGVWR, 9500 lbs. (4309 kg) (Requires (L96) Vortec 6.0L V8 SFI engine. Not available on TC20903 or TK20943 models.)Air cleaner, high-capacityTransfer case, with floor-mounted shifter (Requires 4WD models)Cooling, external engine oil cooler heavy-duty air-to-oil, integral to driver side of radiator tankCooling, auxiliary external transmission oil cooler heavy-duty air-to-oilBattery, heavy-duty 600 cold-cranking amps, maintenance-free with rundown protection and retained accessory powerAlternator, 125 ampsFrame, fully-boxed, hydroformed front sectionSuspension, front independent, torsion barSuspension, rear 4+1 multi-leaf springsExhaust aluminized stainless-steel muffler and tailpipe---EXTERIORWheels, 17" (43.2 cm) steel includes 17" x 7.5" (43.2 cm x 19.1 cm) steel spare wheel. Spare not included with (ZW9) pickup box delete unless a spare tire is orderedTire carrier, outside spare, winch-type mounted under frame at rear (Orders with (ZW9) Pickup box delete will not include a Spare Tire Carrier unless a spare tire is ordered.)Spare tire lock keyed cylinder lock that utilizes same key as ignition and door (Not included when (ZW9) pickup box delete or (VF7) rear bumper delete is ordered.)Bumper, front chrome includes body-color bumper top capsBumper, rear chrome, step-style with pad (Requires RPO (E63) wideside pickup box)Grille, chrome surroundLamps, dual cargo area lampsMirrors, outside manual, Black, manual-foldingGlass, Solar-Ray light-tinted, all windowsTailgate protection top of tailgate protection cap---ENTERTAINMENTSiriusXM Satellite Radio, deleteAudio system feature, speaker system (Included with (5B5) power windows, doors and locks, SEO. Includes 4 speakers on Regular Cab models and 6 speakers on Extended and Crew Cab models.)---INTERIORSteering wheel includes theft-deterrent locking featureFloor covering, Black rubberized vinylInstrumentation, analog with speedometer, fuel level, engine temperature, tachometer, voltmeter and oil pressure indicatorsDriver Information Center with odometer, trip odometer and message center (monitors numerous systems depending on vehicle equipment level including low fuel, turn signal "on", transmission temperature and oil change notification) (Driver Information Center controls are operated through the trip button unless (UK3) steering wheel mounted audio controls is ordered. On 3SA and 4SA, includes 8-point compass and outside temperature.)Warning tones headlamp on, key-in-ignition, driver and passenger buckle up reminder and turn signal onWindows, fixed, rear access door (Standard with Extended Cab models only)Cup holders, front (Also includes rear cupholders on Extended and Crew Cab models)Mirror, inside rearview manual day/nightHeadliner, Opal Gray-colored cloth with matching retainer moldingsAssist handle, front passenger (Also includes rear assist handles in the headliner on Extended and Crew Cab models)Coat hooks, rear driver and passenger side---SAFETYOnStar, deleteUnknown