73 dart sport project

They redid the beak of car to try to pin point what happened. Going to pick it up today and go to a car show tomorrow. I will probably pull motor sunday or monday to go to shop maybe car will go to paint to so I can knock it out all at once. I went all around the pan with a flat body hammer and ball peen hammer to the holes. Only leaks in the back of pan kinda why I am thinking rear main is leaking.