[markmokris]

I read these post, and I am having a hard time understanding what they are trying to do with piece of tubing and enlarging the hole etc.......

Mark, they are talking about the hole where the tuning shaft goes (circled in red).  It becomes worn (enlarged) so they either enlarge it and install a brass bushing, or using tubing to do the same.  I copied Ron's picture and circled the area in question in red.  Hopefully this will help clear it up.

Yes that helps a lot!  I can see what they are trying to do with the bushing.

I think someone in the past tried to make a repair, because the rivet on the right had been drilled out and a sheet metal screw installed.  Probably trying to increase the downward pressure on the entire shaft to increase friction.

Sorry to the original poster for hijacking this thread.

Appreciate the info though.  Thanks John!

Mark K8KZ