Consider the following items when computing the weight on the rear axle of the vehicle:
The tongue weight of the trailer.
The weight of any other type of cargo or equipment put in or on your vehicle.
The weight of the driver and all passengers.
Remember that everything put into or on the trailer adds to the load on your vehicle. Also, additional factory-installed options or dealer-installed options must be considered as part of the total load on your vehicle. For the maximum combined weight of occupants and cargo for your vehicle Tire Loading And Tire Pressure.