Chevrolet Tahoe (2018) is 10 mm (0.39 inch) wider and 158 kg (348 lbs) lighter than GMC Sierra 3500HD (2016).
GMC Sierra 3500HD (2016) is 521 mm (20.51 inch) longer, 61 mm (2.40 inch) higher and has 527 liters (18.61 ft3) bigger cargo space than Chevrolet Tahoe (2018).