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What purpose do the o-rings serve on the drive shaft? I didn't install mine, I forgot them, and as i trailer the boat and did not think they served any purpose except if the boat got a leak they would slow down the water coming into the boat, should i put them in?
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I would install them. I suspect they will help the shaft to turn the gimbal bearing as opposed to the shaft turning inside the gimbal bearing.
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Ok I will put them in, what about the bigger one, whats that for? The o-ring slot thats toward the splines?Comment
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That is for the newer style greasable coupler. If you do not have a greasable coupler, then it doesn't matter if you install it or not.
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