You should see what we in Canada have to pay, shipping, brokers fees, taxes and just" because we can " charges.
The cover and vent are located over a bunch of gears slinging hot
oil every which direction, the tailshaft vent is not. There is very little
oil being slung about other than a bit off the speedo gear.
All I can say is it worked for mine. Transmission is bone dry after many k's.
Craig.