I need the bolt/bushing that connects the forward/reverse linkage cable to the shifter inside the control box. Sometimes it grinds when in reverse and sometimes it doesn't. I pulled the control box apart and it looks like only half of the bolt/bushing is there. I can simply lift it out with my hand. Being that this is loose will certainly cause the problems I'm having. The control box is OMC, but I don't know what year it was made.