I have to take the L shaped bolt off the jockey wheel, when I un bolt it from the A frame. I did this once on a journey to QLD. I travelled all the way to Goondiwindi, about 350km, When we arrived, and got ready to put the jockey wheel on, I noticed the missing bolt, then I noticed just to the right of where you hitch the jockey wheel to, on top of the A frame, a 2 inch wide frame, their it was, the bolt had sat on the A frame for the whole trip, without rolling off. I would have been stumped if I lost it, as the jockey wheel frame is welded on, and their is no room to fit another.