GMC Sierra 3500HD (2015) is 869 mm (34.21 inch) longer, 110 mm (4.33 inch) wider, 135 mm (5.31 inch) higher and has 654 liters (23.10 ft3) bigger cargo space than Toyota 4Runner (2014).
Toyota 4Runner (2014) is 524 kg (1,155 lbs) lighter than GMC Sierra 3500HD (2015).