Stealth Gray Metallic 2013 GMC Sierra 2500HD SLT 4WD 6-Speed Automatic HD Electronic with Overdrive Vortec 6.0L V8 SFI Flex Fuel VVT This 2013 GMC Sierra 2500HD is rare!. Recent Arrival! Odometer is 53536 miles below market average! Reviews: * Impressive hauling and towing capabilities; refined and quiet ride; solid build quality; responsive steering. Source: Edmunds * If you require a vehicle that can transport over 10,000 pounds without breaking a sweat, the 2013 GMC Sierra HD deserves a spot on your short list. Furthermore, most prospective HD truck buyers who place a premium on luxury will find the Sierra HD Denali worth springing for. Source: KBB.com