Experience The Diamond Difference. If you're looking for a vehicle that delivers on performance, utility, comfort, or value, this 2005 GMC Sierra 3500 SRW SLT may be just the ticket... Vehicle Highlights: Heavy-Duty Power Package ($5,510 value)Heavy-Duty Rear Automatic Locking DifferentialDuramax 6600 Turbo Diesel V8 EngineAllison 1000 5-Speed Automatic TransmissionSLT DecorUltrasoft Leather Seat TrimPower Windows with Driver and Passenger Express-Down10-Way Power Driver Seat AdjusterSolar-Ray Deep Tinted GlassFront Power Reclining Full-Feature Bucket SeatsRemote Keyless Entry with 2 TransmittersPower Door LocksColor-Keyed Carpeted Floor CoveringElectric Rear-Window DefoggerAutomatic Dual-Zone Air ConditioningElectrochromic Inside Rearview MirrorOverhead Mini Console with Map LightsBlack Manual Folding Outside Rearview MirrorsElectronic Cruise Control with Set and Resume SpeedElectronic Shift Transfer CaseBlack Leather-Wrapped Steering Wheel RimFront Halogen Fog LampsETR AM/FM Stereo with 6-Disc CD ChangerOnStar 1-Year Safe and Sound ServiceSteering Wheel Mounted Radio ControlsRear Audio ControlsChrome Grille SurroundFront Frame-Mounted Recovery HooksChrome Rear Bumper with Step PadHeavy-Duty Trailering Equipment Comfort Heated driver and front passenger seat cushions - Thats hot. Heated driver and front passenger seat cushions provide more targeted warmth so you can get comfortable quicker in cold weather. If you have lower body pain, you might also be soothed by the heat while you drive. No matter the weather, find comfort in heated driver and front passenger seat cushions. Heated driver and front passenger seatbacks - Thats hot. Heated driver and front passenger seatbacks provide more targeted warmth so you can get comfortable quicker in cold weather. If you have lower back pain, you might also be soothed by the heat while you drive. No matter the weather, find comfort in heated driver and front passenger seatbacks. Heated driver and front passenger seatbacks - Thats hot. Heated driver and front passenger seatbacks provide more targeted warmth so you can get comfortable quicker in cold weather. If you have lower back pain, you might also be soothed by the heat while you drive. No matter the weather, find comfort in heated driver and front passenger seatbacks.Convenience Cruise control - Set it and forget it. Road trips used to be stressful, until cruise control set the pace. Simply set the desired speed and it will maintain that speed without driver intervention. This can help minimize driver fatigue and improve overall fuel economy. Meet your ultimate co-pilot; cruise control.Technology and Telematics Selective Internet access - a more focused delivery. Selective internet access allows you to tailor the features for your feed, such as sports scores, local news, or current weather. When it comes to getting what you want, selective internet access is a net gain. Other Options/Features PICKUP BED, WIDESIDE, BOX, GVWR, 9,900 LBS (4490 kg), EMISSIONS, CALIFORNIA STATE REQUIREMENTS, ENGINE, DURAMAX 6600 TURBO DIESEL V8, TRANSMISSION, ALLISON 1000 5-SPEED AUTOMATIC, ELECTRONICALLY CONTROLLED WITH OVERDRIVE AND ELECTRONIC GRADE BRAKING, REAR AXLE, 3.73 RATIO, TIRE, SPARE LT265/75R16E, ON-/OFF-ROAD, BLACKWALL, SEATS, FRONT POWER RECLINING FULL-FEATURE BUCKETS, SEAT TRIM, LEATHER, PAINT, SOLID, SOUND SYSTEM, ETR AM/FM STEREO WITH 6-DISC CD CHANGER, UNIVERSAL TRANSMITTER, HOMELINK, BATTERY, HEAVY-DUTY DUAL, 770 COLD-CRANKING AMPS, COOLING, EXTERNAL TRANSMISSION OIL COOLER, AUXILIARY, HEAVY-DUTY AIR-TO-OIL, HEAVY-DUTY POWER PACKAGE, LAMPS, AMBER ROOF MARKER, WINDOW, REAR SLIDING, MANUAL, DEEP-TINTED, SUNROOF, POWER, TILT-SLIDING, ELECTRIC WITH EXPRESS-OPEN AND WIND DEFLECTOR, LICENSE PLATE BRACKET, FRONT, SOUND SYSTEM FEATURE, XM SATELLITE RADIO., AIR CLEANER, HIGH-CAPACITY, ENGINE BLOCK HEATER, MIRRORS, OUTSIDE REARVIEW, POWER, HEATED, CAMPER-STYLE, SKID PLATE PACKAGE, TRAILERING EQUIPMENT, HEAVY-DUTY, TRAILERING WIRING PROVISIONS, F