Getting ready to install the Koenig PTO I bought and am trying to understand a few things before I start. When I remove the cover on the transfer case, should I be expecting lots of oil to come out, like when pulling a differential cover! I am aware of being careful not to drop one of the hex bolts or washers. I was thinking of using a little grease in the head to keep it on the driver. After installing it, do I add fluid to the transfer case or where?