Centerboard cable
Elizabeth, I'm not familiar with centerboard cables on the O'Day Daysailer. If it is an O'Day, you could call Rudy Nickerson of D&R Marine in Assonet Ma., and order it. As for installing it; the safest and fastest way to do it would be to have them lift the boat at the boatyard or, you may know someone who has SCUBA gear that could go underwater and connect it for you. In this case, you would need to fish a string down the pipe somehow to connect the new centerboard cable to, and pull it up into the cockpit after the diver connects the shackle to the centerboard. These are just two possibilities that you could consider. Good luck!Joe