I pulled the 727 in my 72 D200 to rebuild it. When I did I found the rear main has been leaking for a while. That is the only leak I can find on that truck. While the tranny is out I figured I may as well do the rear main. The hang up is I have never been inside a 318 and I do not know what is required to get it done. I am using a friend’s lift at his shop so I cannot take a much of stuff off that is not necessary I have to get it done quickly. Have any of you done this repair? If so can I get some guidance before I dig into it? What all has to come off? What kind of seal is it? Is it a two piece? DO I have to pull the rotating assembly to get to the seal?