Many thanks to previous posts. Very helpful. My '86 OD 31 rudder under shudders under sail. The cables are taught. With the Wheel Break on, I cannot turn the Steering Quadrant by hand. All is tight. With the wheel break off, I turn the wheel and stop the rotation: I'm guessing the rudder/rudder post continues to move another 1/4 to 1/2 inch before it stops with a slight bump. The wheel has about two to three inches of play without affect the rudder movement. jAgain, the cables are taught. All bolts are tight, including the bolt through the hub. Could the rudder post have worn away at the through bolt? Are there any bushings which might have worn away? Does anyone have a schematic? I found an old one online but it's too fuzzy to read. Thanks in advance. PS, the boat is in the water at the moment.