hi guys i have a pretty £££££ problem. my clutch has gone, i know the fault isn't the clutch friction plate (although now juddering and slipping) but there is a leak along the line somewhere. basic info for you wonderful people:
1998 1.9 t4
the main cylinder isnt leaking
no leaking from pipes
notice a small chipped part off of gearbox next to bottom housing bolt, this is where its leaking

went to change gear and the pedal went hard, suddenyl to half way soft, then rock hard untill all the fluid drained...
so the leak is internal, which tells me that either the slave cylinder OR release bearing has failed and caused liquid to get onto the friction plate causing this slip/judder.

is the slave cylinder internal as ive read elsewhere?
is the release bearing hydraulic internally as ive seen different types that are separate, attached to slave etc.
any help would be deeply appreciated.