oil leak help

[leighton.haynes]

Hi everyone, my citroen dispatch 57 reg has an oil leak n i duno wa from. 2 weeks ago i has a leak from a damaged driveshaft seal. This was replaced along with the driveshaft and now all of a sudden i have oil again?its a clear oil which im assuming is the oil i av put into the gear box. Ive been told they are a sealed unit? Thanks