Shot in the dark here... Newer owner of a 1967' Barrelback 18' Classic Inboard / V-Drive... The original rudder was lost damaged long ago. A custom one was made but it's clearly not right for this boat. The handling is nowhere near where it should be. I believe it's undersized. Does someone know were I could get a factory replacement / used one at? Or could someone give me detailed information on the sizing??? I do have access to CNC machines so having one made is plausible but I have no idea on the sizing.