Gooseneck trailers utilize a ball hitch system that typically extends over the rear gate of a pickup truck. The front of a boxed gooseneck trailer has an extension at the top that reaches over the tailgate.
Gooseneck trailers are commonly used for transporting heavy loads, such as racing automobiles and horses. In terms of function and design, they are similar to fifth-wheel trailers, but they use a different locking mechanism to connect the trailer to the towing vehicle. For a gooseneck, frame rails are attached to the truck frame, with a ball hitch facing up in the middle. A shaft comes down from the overlapping front end of the trailer and locks over the ball hitch. The ball hitch allows for improved turning and stability for heavy loads.