I can concur with my Zetec/Quaife 6 speed. Had leaks from the bellhousing front and back. When the engine/transmission had to come out for the clutch failure everything was addressed.
It was not fun hunting down gaskets for the T9 and there were at least a few varieties to them too. I did manage to find them state side in NE. I can plug the contact here when I get home. I'll likely need another set regardless if my 5 speed will ever need to go into the car.
Transmission was leaking from everywhere. Multiple locations in the top and all the seals in the front. I think one of them is a press/contact seal without a gasket which is also concerning. Don't remember if we used a gasket maker on it or not.
Edit: found the email
John Esposito
Quantum Mechanics LTD.
315 Riggs Street, Building A Unit 3
Oxford, Ct. 06478
Phone 203-463-8299