When I removed the refill plug...I checked the bottle-differential relationship before draining the old oil to make sure I was going to be able to refill.

I had a big scare though. I tought the blue conic tip in the new oil bottle was secured. BIG MISTAKE. As I was checking for clearance...that blue tip fell into the differential!! I carefully tried to pull it back to no avail.

I said.."what the heck" and opened the drain pulg...fortunately tha plastic blue tip was washed away along with the old oil. Cheated death. For a moment I thought it was going to be a long night.