Flaboy, I was a little "lost" on my first reading as well. I think he means that he built the dual hay fork like the one in the picture. Then, he welded a gooseneck ball on the top iron, in the middle of the fork. If conditions around his hay area are too muddy, he can use his tractor & modified hay fork to move the goosneck trailer just about anywhere he wants to. After doing so, he then hooks the goosneck up to his truck and away he goes! Is that it? Similar to using a ball on a drawbar to move trailers around with a tractor, where it is impractical to use a truck.