The CURT GM / Nissan / Ford gooseneck ball kit allows you to instantly outfit your pickup truck for gooseneck towing. The components also come in a durable carrying case for convenient storage when not in use. NOTE: The factory gooseneck hitch OEM puck system is required for installation. The GM / Nissan / Ford gooseneck ball in this kit features a patented design. It is equipped with a simple lever and retainer balls that allow it to easily drop into the gooseneck hitch center puck and lock into place with a simple quarter turn. The gooseneck ball has a 2 5/16 Inch Diameter and is rated for 30,000 Pound GTW and 7,500 Pound vertical load. For dependable strength and safety, the gooseneck ball is constructed from machine forged steel alloy, finished in a polished chrome plating and thoroughly tested to U.S. VESC V 19 specifications.