2015 GMC Sierra 3500HD 4WD Crew Cab 153.7" Denali

Rear axle, 4.10 ratio (Requires (L96) Vortec 6.0L V8 SFI engine.)

Suspension Package, Standard includes 51mm twin tube shock absorbers and 33mm front stabilizer bar

Air cleaner, high-capacity

Exhaust, aluminized stainless-steel muffler and tailpipe

Transfer case, electronic shift with rotary dial controls (Requires 4WD models)

Differential, heavy-duty locking rear

Four wheel drive

Cooling, external engine oil cooler

Cooling, auxiliary external transmission oil cooler

Alternator, 150 amps

Battery, heavy-duty 720 cold-cranking amps/80 Amp-hr, maintenance-free with rundown protection and retained accessory power

Trailering equipment Trailering hitch platform 2.5" with a 2.0" insert for HD, 7-wire harness with independent fused trailering circuits mated to a 7-way sealed connector to hook up parking lamps, backup lamps, right and left turn signals, an electric brake lead, battery and a ground, The trailer connector also includes the 4-way for use on trailers without brakes - park, brake/turn lamps

Recovery hooks, front, frame-mounted, black

Frame, fully-boxed, hydroformed front section

Underbody Shield, frame-mounted shields includes front underbody shield starting behind front bumper and running to first cross-member, protecting front underbody, oil pan, differential case and transfer case

Steering, Recirculating Ball

Tire carrier lock, keyed cylinder lock that utilizes same key as ignition and door

Wheelhouse liners, rear (Not available with dual rear wheels.)

Bumper, front, body-colour

Bumper, rear body-colour with bumper CornerSteps

CornerStep, rear bumper

Mouldings, bodyside, chrome

Headlamps, halogen projector with LED signature

Fog lamps, front, halogen

Lamps, cargo area, cab mounted with switch on centre switch bank

LED Lighting, cargo box with switch on centre switch bank

Glass, deep-tinted

Tailgate, locking, utilizes same key as ignition and door

Tailgate, EZ-Lift and Lower

Cargo tie downs (4), movable upper

Door handles, chrome

Tailgate and bed rail protection caps, top

Bose Sound with 6 speaker system (7 speaker system including subwoofer when ordered with bucket seats).

Seat, rear 60/40 folding bench (folds up), 3-passenger (includes child seat top tether anchor)

Steering column, manual Tilt-Wheel and telescoping

Steering wheel audio controls

Instrumentation, 6-gauge cluster featuring speedometer, fuel level, engine temperature, tachometer, voltage and oil pressure

Windows, power with driver express up and down and express down on all other windows

Pedals, power-adjustable

Remote vehicle starter system

Cruise control, steering wheel-mounted

Theft-deterrent system, unauthorized entry

Air conditioning, dual-zone automatic climate control

Power outlet, 110-volt AC

Console, floor mounted, reconfigurable with moveable cup holders, cell phone storage, power cord management and hanging file holder capability

Assist handle, front passenger and driver on A-pillars

Visors, driver and front passenger illuminated vanity mirrors

Mirror, inside rearview auto-dimming

StabiliTrak, stability control system with Proactive Roll Avoidance and traction control, includes electronic trailer sway control and hill start assist

Air bags, single-stage frontal and thorax side-impact, driver and front passenger, and head curtain side-impact, front and rear outboard seating positions

Rear Vision Camera with dynamic guide lines

Front and Rear Park Assist, Ultrasonic