Alrighty, I bought myself a Rare, or UnPopular, 1977 GM Ranger 17' Boat (my 1st boat) with a spun coupler. It MAY or MAY NOT have been sitting in a field for 13 years, which is where I found it, un-covered with bees nests everywhere. :facepalm: It has a 224ci Mercruiser 470 pre-alpha setup...