Allison 1000 6-Speed Automatic, 4WD.

　　2015 GMC Sierra 2500HD Denali Duramax 6.6L V8 Turbodiesel

　　Awards: * KBB.com Brand Image Awards Reviews:

　　* Impressive hauling and towing capabilities; carries on predecessor's refined and quiet ride; strong diesel engine; available CNG fueling for regular V8; solid build quality. as stated by Edmunds

　　Options:

　　4.10 Rear Axle Ratio|18 Chromed Aluminum Wheels|Front Full Feature Bucket Seats|Perforated Leather Appointed Seat Trim|Heated Driver & Front Passenger Seats|Heated & Cooled Front Bucket Seats|Radio: Am/Fm/Siriusxm W/Navigation|Siriusxm Satellite Radio|Bose Sound W/7 Speaker System|Electric Rear-Window Defogger|Color-Keyed Carpeting Floor Covering|Onstar 6 Months Directions/Connections Plan|Onstar 4G Lte Wi-Fi Hotspot|Manual Tilt-Wheel/Telescoping Steering Column|Power Sliding Rear Window W/Defogger|Standard Suspension Package|Heavy-Duty Trailering Equipment|Heated Leather Steering Wheel|Ultrasonic Front & Rear Park Assist|Single Slot Cd/Mp3 Player|Remote Vehicle Starter System|110-Volt Ac Power Outlet|Rear Vision Camera W/Dynamic Guide Lines|Front Halogen Fog Lamps|Deep-Tinted Glass|Electronic Shift Transfer Case|Power Windows W/Driver Express Up & Down|Rear 60/40 Folding Bench Seat (Folds Up)|Remote Keyless Entry|Rear Wheelhouse Liners|Color-Keyed Carpeted Floor Mats|Chrome Bodyside Moldings|Bluetooth For Phone|Dual-Zone Automatic Climate Control|Floor Console W/Dual Cup Holders|Auto-Dimming Inside Rear-View Mirror|Driver & Front Passenger Visors|Heated Power-Adjustable Outside Mirrors|Chrome Door Handles|Power-Adjustable Pedals For Accelerator & Brake|150 Amps Alternator|Ez-Lift & Lower Tailgate|Universal Home Remote|8 Multi-Color Driver Instrument Info Display|Steering Wheel Audio Controls|Theft Deterrent System (Unauthorized Entry)|Black Frame-Mounted

　　Front Recovery Hooks|Body-Color Front Bumper|Rear Body-Color Bumper W/Bumper Cornersteps|Variably Intermittent Wipers|Ventilated Front Seats|Auto-Dimming Rear-View Mirror|7 Speakers|Compass|Am/Fm Radio: Siriusxm|Exterior Parking Camera Rear|4-Wheel Disc Brakes|Air Conditioning|Electronic Stability Control|Front Center Armrest|Navigation System|Tachometer|Voltmeter|Abs Brakes|Adjustable Pedals|Auto-Dimming Door Mirrors|Automatic Temperature Control|Bodyside Moldings|Brake Assist|Bumpers: Body-Color|Cd Player|Delay-Off Headlights|Driver Door Bin|Driver Vanity Mirror|Dual Front Impact Airbags|Dual Front Side Impact Airbags|Emergency Communication System|Front Anti-Roll Bar|Front Dual Zone A/C|Front Fog Lights|Front Reading Lights|Front Wheel Independent Suspension|Fully Automatic Headlights|Garage Door Transmitter|Heated Door Mirrors|Heated Front Seats|Heated Steering Wheel|Illuminated Entry|Low Tire Pressure Warning|Mp3 Decoder|Memory Seat|Occupant Sensing Airbag|Outside Temperature Display|Overhead Airbag|Overhead Console|Panic Alarm|Passenger Door Bin|Passenger Vanity Mirror|Power Door Mirrors|Power Driver Seat|Power Passenger Seat|Power Steering|Power Windows|Rear Reading Lights|Rear Seat Center Armrest|Rear Step Bumper|Rear Window Defroster|Remote Keyless Entry|Security System|Speed Control|Split Folding Rear Seat|Steering Wheel Mounted Audio Controls|Telescoping Steering Wheel|Tilt Steering Wheel|Traction Control|Trip Computer|Turn Signal Indicator Mirrors