What is Gross Combination Weight? Do you currently have car insurance? Insurance is mandatory to drive in Ohio Yes I have insurance. But please show me your best quotes. No, please help me find the best insurance. 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. This questions appears in the following tests: Arkansas Passenger Connecticut Double Iowa Class B Knowledge Test Kentucky Class B Knowledge Test Louisiana Class B Knowledge Test South Carolina Class B Knowledge Test South Dakota Tank