http://www.ebay.com/itm/63016-Tow-Re...8f35b8&vxp=mtr
PINTLE HITCH ......my buddy put this hookup on after his Dad didn't get the trailer on the ball right...once the trailer dropped off and the two spares(mounted on the trailer ) hit the pavement they blew out and the safety chains broke....his boat took a 10 ft section of guard rail into the hull...