2013 Chevrolet Silverado 3500HD SRW LT

Exhaust, aluminized stainless-steel muffler and tailpipe
Trailering equipment, heavy-duty includes trailering hitch platform and 2.5- inch receiver with 2" adapter, 7-wire harness (harness includes wires for: park lamps, backup lamps, right turn, left turn, electric brake lead, battery and ground) with independent fused trailering circuits mated to a 7-way sealed connector, wiring harness for after-market trailer brake controller (located in the instrument panel harness) and (JL1) integrated trailer brake controller (Will be deleted if (ZW9) pickup box delete or (VF7) rear bumper delete is ordered.)
Suspension Package, Handling/Trailering, heavy-duty includes 35mm monotube shocks and 34mm front stabilizer bar
Suspension, rear 4+1+2 multi-leaf springs for single rear wheel and 3+1+2 multi-leaf springs for dual rear wheel
Four wheel drive
Transmission, 6-speed automatic, heavy-duty, electronically controlled with overdrive and tow/haul mode. Includes Cruise Grade Braking and Powertrain Grade Braking (Requires (L96) Vortec 6.0L V8 SFI engine.)
Alternator, 125 amps
Frame, fully boxed, hydroformed front section
Transfer case, electronic shift with rotary dial controls (Requires 4WD models)
Brakes, 4-wheel antilock, 4-wheel disc with single rear wheels
Engine, Vortec 6.0L Variable Valve Timing V8 SFI E85-compatible, FlexFuel capable of running on unleaded or up to 85% ethanol (322 hp [240.1 kW] @ 4400 rpm, 380 lb-ft of torque [513.0 N-m] @ 4200 rpm) (Does not include E85 capability with (ZW9) pickup box delete.)
Differential, heavy-duty automatic locking rear
Suspension, front independent, torsion bar
GVWR, 10,800 lbs. (4899 kg) with single rear wheels (Requires CK30743 with (L96) Vortec 6.0L V8 SFI engine.)
Trailer brake controller, integrated (With (E63) fleetside pickup box, included and only available with (Z82) heavy-duty trailering equipment. Available as a free flow option with (ZW9) pickup box delete.)
SAFETY
Stolen Vehicle Assistance (Deleted when (UE0) OnStar delete is ordered.)
OnStar Turn-by-Turn Navigation (Deleted when (UE0) OnStar delete is ordered.)
StabiliTrak, stability control system with Proactive Roll Avoidance and traction control includes electronic trailer sway control and hill start assist (Standard on single rear wheel GVWR only.)
Automatic Crash Response (Deleted when (UE0) OnStar delete is ordered.)
Door locks, rear child security (Crew Cab models only.)
OnStar, 6 months of Directions and Connections plan includes, Automatic Crash Response, Emergency Services, Crisis Assist, First Assist, Injury Severity Predictor, Stolen Vehicle Assistance, Stolen Vehicle Slowdown, Remote Ignition Block, Remote Door Unlock (requires power locks), Roadside Assistance, Remote Horn and Lights, Turn-by-Turn Navigation with OnStar eNav, Destination Download (requires navigation radio), OnStar Vehicle Diagnostics, Hands Free Calling and available OnStar RemoteLink mobile app. (Also includes Stolen Vehicle Slowdown when (LML) Duramax 6.6L Turbo Diesel V8 engine is not ordered. Not available with a ship-to of Puerto Rico or the Virgin Islands. Visit onstar.com for details and system limitations.)
Daytime Running Lamps with automatic exterior lamp control
Air bags, frontal, driver and right-front passenger (Always use safety belts and the correct child restraints for your child's age and size, even in vehicles equipped with air bags. Children are safer when properly secured in a rear seat in the appropriate infant, child or booster seat. See the Owner's Manual and child safety seat instructions for more safety information.)