OK - so I need a spare prop. I found this in the "blowout" section.
http://www.boat-props.com/propellers/s/manufacturer-Mercruiser/chart-77/pitch-21.00/prop_chart_relation_id-16552/index.html?search=Product&engine_id=434&**********=974189317&*******=476010956
Seems like a good deal. I am running...