My question is about maintance of the U-joint on an I\O. I keep all parts of the I\O greased but there is no way to get to the U-joint without removing the rubber boot that covers it. Should I try to grease the U-joint our just leave it alone. Can the rubber boot clamps be moved without causing a problem with water getting to the U-joint later. The manual shows that the U-joint has grease fittings but it does not tell how to remove the rubber boot to get to them.