Question What is Gross Combination Weight? Answers The total weight of the powered unit, trailer, and cargo The total weight of a single vehicle without its load The maximum weight allowed by the manufacturer Explanation Gross Combination Weight (GCW) is the total weight of a powered unit, its trailer(s), and the cargo being carried. Take a FREE Practice Test Now This questions appears in the following tests: South Dakota Knowledge Test Class A , Tennessee Knowledge Test Class A , Missouri Passenger ,