oil leak from tranny... need your opinion., what do you think that should be??? Options

[malpaso]

Folks look what I have found after lifting my car:


main leak point was place where is transition connected to half shaft (some joint or something):


for better orientation once again with comments:


here another picture from different angle:


what do you think it should be? I have some theories:

- bad balance gear (differential gearing) or it's bearing
- bad axle joint... it self or some part like some seal or ring cup... I don't know
- bad half shaft (half axle)

what do you thing? anyone seen this before? Wanna more pics?

thanks for any advice...


p.s.: sorry for multiple names of parts, I'm not sure which one is right (or better) for that...

edit:
also may help if you tell me which part should be bad (just in case I will not know what is that or how it is called )

RH drive shaft EPC pic:


front axle holding EPC pic:


This post has been edited by malpaso: Apr 16, 2007 - 6:53 AM