2011 GMC Sierra 3500HD III (GMT900, facelift 2011) Crew Cab Long Box specs, Fuel consumption, Dimensions
Start of production 2011; End of production 2013 | Pick-up Power: from 360 Hp to 397 Hp Length 6581 mm (259.09 in.); Height 1979 mm (77.91 in.); Wheelbase 4260 mm (167.72 in.);