Convert-A-Ball Cushioned Fifth-Wheel Adapter -
This adapter allows you to directly connect your fifth wheel to a gooseneck ball, eliminating the need for a fifth-wheel plate. The adapter has a 20,000-lb. rating and has a fail-safe king-pin adapter. It can be locked with a padlock and includes safety chains. To find correct size, line up the ball and your king-pin hitch and measure from the top of the ball socket to the base of the pin box (allow for pin-box adjustment). Adapters adjust in height for a precise fit. Straight model adjusts from 12" to 16", offset models are designed for short-box pickups.