Draw-Tite Hide-A-Goose part # 9465-40 is a complete 30,000lbs bolt on gooseneck hitch system. The hitch is designed to line up with with factory holes in the frame so no drilling or welding is required. The entire hitch installs under the truck bed and a lever in the driver side wheel well releases the ball so it can be flipped over for a level bed. The two safety chain hoops include springs to keep the pulled tight against the floor so nothing is blocking access inside the bed. The hitch is rated for 30,000 of gross trailer weight and 7,500lbs of tongue weight which is the highest load rating a gooseneck hitch can have. Each kit is sold complete and ships out in two boxes. One box contains the rail kit with two crossbars, side mounting plates, and all the mounting hardware. The second box has the center head, 2 5/16" ball, safety chains, and release lever.