My 28 is a 1979. I've had it 10 years. Last year under heavy sailing conditions the rudder would squeak under load. Back in the slip no noise. This year it squeaks all the time. I discovered that the rudder post is off center and rubbing against the top of the rudder tube right where you would attach the emergency tiller. It still turns easily. On close inspection I found a grease fitting about half way up the tube above the steering quadrant. Never knew it was there before. When I applied grease with my grease gun some grease oozed out of a split in the fiberglass column/rudder tube. This leads me to believe there's some kind of fitting at this point in the rudder tube and it's gotten degraded, shifted or something so that the rudder post no longer runs dead center up the tube. Has anyone ever dropped the rudder on this model and/or knows what supports the post other than the steering quadrant. Thanks.