2015 GMC Sierra 3500HD IV (GMTK2XX) Double Cab Long Box specs, Fuel consumption, Dimensions
Start of production 2015; End of production 2019 | Pick-up Power: from 301 Hp to 445 Hp Length 6321 mm (248.86 in.); Height 1981 mm (77.99 in.); Wheelbase 4017 mm (158.15 in.);