Output seal on drivers side
 

Can any body please tell me how many seals are on the drivers side diff output seal ? I have gearbox oil leaking from the drivers side diff , I got told that there is a outer one and a internal one if it's the latter then it's a box out job ??
Has any body had the same leak and what was changed ?
Cheers guys

Only a outer seal that the out put shaft runs on .

Cheers Martin , when can you get her in mate ?