 OVERVIEW GMC Sierra 3500HD Chassis Cab offers two- or four-wheel drive, Regular or Extended Cab, gas or diesel engine — all ready to be upfitted with specific vocational bodies. Engine Availability • Vortec 6.0L V8 with 312 horsepower • Duramax 6.6L Turbo Diesel V8 with 365 horsepower, 660 lb.-ft. of torque; Bio-Diesel compatible NEW FOR 2008 • XM Satellite Radio3 standard (fleet delete available) • High idle switch available • 17-in. wheels and tires standard | | SELECTED STANDARD FEATURES | Safety and Security • Frontal air bags with passengerside deactivation switch1 • Daytime Running Lamps and automatic lamp control • OnStar 1-year Safe & Sound Plan2 (fleet delete available) Interior • Reclining front split-bench seat • Rear bench fold-up seat (Extended Cab) • Tilt adjustable steering column • AM/FM stereo with CD/MP3, XM Satellite Radio3 (fleet delete available) • Driver Information Center • Overhead console | Mechanical • 6-speed automatic transmission • 4-wheel disc antilock brake system • Independent front and multileaf rear suspension • Power steering • Heavy-duty battery Exterior • Intermittent windshield wipers • Smoked amber roof marker lamps • Foldaway rearview mirrors • Dual rear wheels with LT225/75R17 all-season tires • 8-lug steel wheels with center caps |  | SELECTED OPTIONAL FEATURES • Seating options: power, buckets, leather seating surfaces, lumbar control • Cruise control • Air conditioning • Power adjustable pedals • Power rear sliding window • Audio options: 6-disc CD changer, Bose system • Allison 1000 6-speed automatic transmission (with Duramax) • PTO control (with Duramax) • Electronic shift 4WD • High idle switch • Integrated trailer brake controller • Automatic locking rear differential • Outside mirror options: camper, power, heated, turn signals • Remote Vehicle Starter System • Heated windshield washer fluid • Skid Plate Package • Snow Plow Prep Package | |