I pulled the lower unit off to check my impeller today. Step one is to pull the lower drain plug to drain the grease. There's a small hole near the bottom of the drive, but there's no plug in that hole. :% I separated the lower unit and got less than a quart of real milky fluid. Fluid also came out the small hole, after which water droplets came out. I pulled what looked like pieces of shale from around the pump housing and the lower shift shaft bearing was govered on goo. What the #%* is going on here?