Definitions for "GCWR"
Gross Combination Weight Rating (GCWR) is the maximum number that the tow vehicle GVW plus towed vehicle GVW (or GTW) should never exceed. For additional details see Understanding RV Weights.
(Gross Combination Weight Rating) The maximum amount of weight allowable, as established by the manufacturer, for the vehicle, trailer, equipment, payload, fuel, and occupants.
Gross Combination Weight Rating, Total weight of fury equipped tractor, trailer or trailers, and payload.