Freelander 1 transmission oil leak

I have a Freedlander 1 TD4, there is gearbox oil coming from the bottom of the bell housing, the gox front seal was dry when a new clutch was recently fitted. Has anybody else had the same problem and found the cause please?

Is it definitely oil and not clutch fluid?

If it's oil, you need to identify if it's from the engine or gearbox. Oil seal leaks in both engine and gearbox aren't unheard of.

box was out 2 weeks ago due to failure of slave cyl and rear main and g/box seal were both dry. Def transmission fluid as it's clean and engine oil would be black.
Don't think there is enough hydrolic fluid to leak without losing the pedal

It's possible that the box input oil seal integrity was affected when reinstalling the box. If the box is allowed to hang on the input shaft, then it's possible to bend the shaft enough to allow the oil to leak out.
This is assuming the oil level wasn't overly high when it was filled. Over filling puts extra pressure on the seal, causing excess oil to drain though and out of the bell housing.