1958 7.5hp AD-12: The bushing surface on the bottom of the "driveshaft housing & seal assembly", (#14 in the diagram: http://www.marineengine.com/parts/johnson-evinrude-parts.php?year=1958&hp=7.5&model=AD-12&manufacturer=Johnson§ion=Gear+Case+Group
) was shredded. Installed a new housing...