aerowoof - he said that the servo was moving but the rudder was not, even on the ground from the impression I got. Before I tore ANYTHING out, I'd be tempted to find where the problem is. It may not be the pushrod at all but a binding rudder itself. Find the problem BEFORE you cure it. Disconnect the pushrod at the rudder and see if the pushrod end moves freely with the servo. Then see if there is any binding in the rudder itself.