Ok guys I got my new water pump it was the "new version" so i couldnt use all the parts without the new housing. I replaced the plates, impeller, key, and gaskets. When i dropped my lower unit a round o-ring fell to the ground. I think the o ring fits on the drive shaft but im not for sure. It was broken but it looks like it would fit on the drive shaft and there isnt any kind of o-ring on the shaft. Do you think that is where it came from? Also after i bolted the housing down on waterpump in my repair kit it came with the grommet and another big rubber piece that fits snug on drive shaft and is about 1/2" long. Do i put the grommet over the drive shaft and put it on the water pump housing then push the rubber piece inside the grommet or what? When i took it off there was only the grommet and no rubber piece. Or does that rubber piece suppse to go in the water tube?