Just bought a new Keystone Cougar! What else do I need?

KC10Chief wrote:
Most people don’t realize that your payload capacity already takes into account the weight of over 300 pounds of passengers and cargo.

This is incorrect and a common misconception. The tow rating accounts for 300lbs for driver and passenger under the new SAE standards. The payload doesn't account for anything added to the truck other than full fluids. It is simply GVWR minus the curb weight. Everything added into the truck subtracts from payload, including the driver.