Turbo 400 transfer case speedo housing issue

[JFORRESTERSR]

Good Afternoon all

So i have been fighting a trans issues with my 72 k5 for a year now and we are on our 2nd tranny now. heres the latest I am leaking gear lube from the speedo housing from both sides were it connects tot the transfer case and where the speedo cable connects. I ordered a new speedo housing from ECKLERS back an feb and still have no ship date. So I started looking around our forums here and found a place called transmissioncenter.net I called them and they said if I have leaking fluid its a problem with the transfer case because fluid doesn't go into the housing theres only grease in there for the gears. Called my trans guy he said it does have fluid going through it and it needs new gaskets.......WTF
I am going insane with this guy but I am financially stuck dealing with him
anyone know whos right.
much appreciated