Hi all, I am sorry if i sound like a broken record and that this is elementary to most of you, however i am still confused why there are three holes/caps for the bevel box. could someone please clarify with reference to the attached picture; A) which bolt/screw i take out so as to remove the old oil, B) which hole i put the new oil in... C) How i know that i have put enough oil in. i have numbered the holes i am referring to on the attached picture which is a view of the bevel box from above and the back of the car. Thanks