Chevrolet Tahoe (2018) is 10 mm (0.39 inch) wider and 174 kg (384 lbs) lighter than GMC Sierra 3500HD (2018).
GMC Sierra 3500HD (2018) is 520 mm (20.47 inch) longer, 87 mm (3.43 inch) higher and has 527 liters (18.61 ft3) bigger cargo space than Chevrolet Tahoe (2018).