Gear box oil leak.

[AlexS]

My gearbox is leaking oil again, I ve already had the selector shaft seal kit changed and its dry as a bone down there in the under tray. It does however appear to be leaking from the near side driveshaft gaiter. Its not just a dribble either.
The garage have suggested replacing the gaiter and I realise the drive shaft has to be popped out, but surely the gaiter just covers the bearing? How would that leak gear box oil?
Any advice much appreciated.

(PH1 172 btw).

 

[caister]

They all seem to leak. How much is yours leaking though?

 

[AlexS]

More than a weap, you can see where its flinging it down the back of the car on the underside, enough to worry about.