Chevrolet Tahoe (2018) is 13 mm (0.51 inch) wider and 78 kg (172 lbs) lighter than GMC Sierra 3500HD (2014).
GMC Sierra 3500HD (2014) is 650 mm (25.59 inch) longer, 89 mm (3.50 inch) higher and has 527 liters (18.61 ft3) bigger cargo space than Chevrolet Tahoe (2018).