While changing the oil under my 1996 Mustang
GT (automatic transmission), I noticed a hole that appeared to be missing a cover or plug.
It is directly on the bottom of the engine, centerline, just to the rear of the engine block and just forward of the transmission pan.
It is a a hole about 2 inches in diamter, maybe the size of a golf ball, that I can look up into the (transmission?).
The area behind the hole and the pan has evidence of red fluid (I'm assuming transmission fluid), definatley not oil.
I don't have a manual or diagram to identify what should be there, but I'm sure its not supposed to be exposed like that.
Any Mustang owners or mechanics that can tell me what that part was?