How am I going to see where it is leaking from if I don't pull the bell housing. If I do I do I run the engine to get the dye to come out.
Pick up the dye at local car parts store, put in it and run it so the dye can spread through engine. Then look over the engine for the source to see if you can find it before you pull bell housing. If you can't detect the source then pull the bell housing, etc to confirm the rear, plugs etc. Either way, the dye will direct you right to the source so you aren't guessing.