The Ball Mount is placed inside the hitch opening which is mounted to the vehicle. Be sure to check before towing to make sure a hitch pin is placed through the hole of the ball mount. The hitch pin secures the mount inside the tube of the receiver hitch when towing.
Style Type #1 Ball mount: This style of mount is needed when the trailer and vehicle are equally level.
Style Type #2 Ball mount: This style of mount is needed when your trailer and vehicle are NOT equally level.
How do I determine what size drop or rise I need for my ball mount?
To determine the size drop or rise for your style type #2 ball mount: (style type #1 is only for equal level vehicle and trailer) First level your trailer and measure from the ground up to the top ID. of receiver tube opening. Second, measure your vehicle from the ground up to the bottom of the trailer coupler. Third take the difference from both measurements and this will determine the size of drop or rise you need.