904 Tranny question

One tip is to fix the highest leaks first. Fix the Speedo seals first and check it. then The Pan Gasket and probably put a filter kit in it. If it still leaks but you can only see it from the bell housing then it's probably the Pump seal. That will require pulling the Trans out. Refrain from driving it while it's low on fluid or you may end up needing to rebuild it.