Question, I had the Mark in the air tonight and noticed my transmission looks to be missing some kind of plug, cap on the bell housing. There is a round hole at the bottom of the bell housing.... Should there be a cap on it? Is this some kind of inspection cover? I know the car had a recent trans service per the paperwork.... Torque converter drain? Always better to do the work yourself. No losing parts. The car may eat the tools, but no losing parts...