Transfer box breather.

So just about to start my annual trip to the mountains tomorrow but I seem to be losing a lot of ep90 from the train front and back, changed the seals and it is still doing it, so I reckon my breather must be blocked but where is the bloody thing?

Come on help and old bloke out here, give me a clue.

Ta

on top of hi/lo selector housing

its the long housing with 6 bolts, similar shape to a mars bar

are the output bearings ok?

Cheers chaps, when u drained it there was about 4 litres of oil in there, I remember that last time I filled it took loads I was just wondering how as once it gets to the filler hole it should over flow and the job be done. I've done no wading and the gearbox is still full so I buggered if I know where it hid.

2 litres is enough!