This may sound like a dumb question, but being new to the boating community, I plead ignorance. I have a 25' Oday, with a standard rudder/tiller that mounts on the back of the boat with a stainless bracket. I've been told that the rudder/tiller is held in the brackets by a retaining pin. But either there was never one on my rudder, or I just don't know where to look. Can anyone help?