I have a 2000 340 Sundancer. When we bought the boat, both wiper arms were missing. I noticed that my starboard side motor shaft has the grooved round knob on top, but the port side shaft does not. Is that normal, or is the portside knob missing? I looked on the factory wiper arms I found, and they both seem to have the same type of attachment for the shaft.
Any help on this would be awesome!