Does anyone have the specifications/diameter dimensions of the rudder shaft box on a 1993 Luhrs 290 Tournament? Small leak at the rudder box. Cause likely a loose bolt, nut spins and won't tighten down. Will look to sound the area for water incursion and then replace/rebed the box and reseal with 5200. If someone has the specs for the rudder box it will save my carcass from contorting like a midget at a urinal yet again. TIA.