While painting the bottom of my Hunter 33.5 today, I noticed that there is a synthetic material spacer, about 1/8" thick, around the rudder post above the rudder body and before the post enters the hole into the boat. My problem is that this spacer is broken in half with nothing to hold the other half on.What is the purpose of this huge washer (I call it a spacer)? My thought is that since a rudder is filled with foam, it is buoyant. The spacer keeps the top of the rudder body from coming in contact with the bottom of the boat. However, you would think that somehow the rudder post is held in place where it mates with the pulley wheel used for the steering cable. I would hate to think of having to drop my rudder to replace this spacer.Any help would be appreciated. I'll try to get a picture tomorrow if that will help.