Hey XcX,
I know eveyone is telling you different things but I was in the same boat.
About 10 o'clock, put a small screwdriver under the right/clockwise side and used the side of the housing to gently pry the thing out as that side of the ring is beveled slightly. I too tried to get underneath it and pull it out with no luck, then all of a sudden it just started comming out when I got the driver more parallel to the ring. The "fins" in the tube, I just used a long sawsall blade and cut them in half and they fell out.
JRG