You'll need a prop puller which you should have anyway since you will have a spare prop after you buy the second one. If you buy an Acme which is what comes stock on Sangers', detailed instructions will be included. As far as which one, you need to know how much total weight you will be running on a regular basis. Include people and gear and ballast. If you know the weight that would help us determine what prop you might want to go with. Karl @ www.boarditup.com
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