Ford F-250 (2016) is 332 mm (13.07 inch) longer than GMC Sierra 3500HD (2020).
GMC Sierra 3500HD (2020) is 47 mm (1.85 inch) wider, 16 mm (0.63 inch) higher, 284 kg (626 lbs) lighter and has 137 liters (4.84 ft3) bigger cargo space than Ford F-250 (2016).