Just pulled up some old photos of that black reverse switch pin and I think what happed to mine was that the four tabs at the base were worn and the pin wouldn't stay in the column? I think I push a plastic pin or tube inside of the end of it down to those four tabs at the base to spread them and that helped to keep it secured to the column? Don't know where I found a new reverse pin/post but that's the best fix if it is the problem......or you can try this.