[Joker2]

OK I called Michigan Wheel, they told me the kit (200) is the correct hub kit, I need to "seat" the hub by hitting it all the way into the prop with a block of wood, or put it all together and tighten the nut down as CAM said. Went out today, tried it, it seated all the way in which was good, still didn't have exposed splines, but had plenty of threads to get only the nut and cotter pin on, ran it everything was fine. The boat ran way smoother, got it up to 5100 ( previously only 4500 )with just me and my son. My concern is that there is no washer. The entire nut is against material, do I need a thin flat washer? I don't know what it would do, the nut is making full contact with the adapter. What do you think? I still have a constant rattling noise that sounds like it is coming from the lower unit, can't figure it out, only hear it above 2500 RPM's, this happened with the old prop too so I know it is not the prop. I don't know what to check.