GMC Sierra 3500HD (2015) is 366 mm (14.41 inch) longer, 39 mm (1.54 inch) wider, 168 mm (6.61 inch) higher and has 1031 liters (36.41 ft3) bigger cargo space than Honda Ridgeline (2016).
Honda Ridgeline (2016) is 60 kg (132 lbs) lighter than GMC Sierra 3500HD (2015).