Ford F-350 (2014) is 980 mm (38.58 inch) longer, 403 mm (15.87 inch) wider, 78 mm (3.07 inch) higher and has 198 liters (6.99 ft3) bigger cargo space than GMC Sierra 3500HD (2015).
GMC Sierra 3500HD (2015) is 679 kg (1,497 lbs) lighter than Ford F-350 (2014).