Hi Jason, my boat is a 20 year old 9 meter sailboat. Her name is Old Bay, I was going to name her Tooling Around but that was taken by the competition ;-) Anyway the question was about the dingy motor's prop. I need to replace it and the replacement, which I was assured by the manufacturer is correct, does not fit over the shaft. So my question is do you need to "force" it on? I know some props require a "puller" to get them off, guess they were"forced" on. The motor is a GameFisher (good enough for the dingy).