The pan in the picture is the main oil pan on the engine. It is located at the back of the engine just in front of the transmission. I would have to say that it is more center than driver or passenger. Perhaps I am confusing my gaskets, but I am pretty sure the SA told me that valve covers came off in order to get down to the valley pan. I might need to check into that further. If they did not change those valve cover gaskets then that could be the source of my leak.