Ford F-250 (2014) is 554 mm (21.81 inch) longer, 55 mm (2.17 inch) higher and has 97 liters (3.43 ft3) bigger cargo space than GMC Sierra 2500HD (2014).
GMC Sierra 2500HD (2014) is 3 mm (0.12 inch) wider and 2752 kg (6,067 lbs) lighter than Ford F-250 (2014).