The EXECUTIVE 5th Wheel Pin Box Replacement with Gooseneck Coupler allows the user to hook a Fifth Wheel RV to the truck with a gooseneck ball. This technology eliminates the bulky Fifth Wheel from the back of the truck so the user can have full use of the bed when not towing the camper trailer. This Pin Box Replacement also eliminates the additional costs of buying and installing a fifth wheel hitch for anyone who already has a gooseneck ball. One of the biggest perks of this product is its use of GEN-Y's Torsion-Flex Technology! Torsion-Flex Technology provides one of the smoothest and safest towing experiences you'll ever experience.