Possible bad TOB + massive oil leak

[2gSpyder4g64]

Hey guys last week i let a "friend" drive my car from his garage to my house, i wasnt with him, he told me there was a weird noise on the drive train, i tought he meant a front axle, i just replaced and maybe i left something "loose", he left, then i took the car for a test drive, and felt like the clutch was slipping or maybe a broken center differential....., plus he blow a seal/gasket ,
There was no oil in the engine so i turned it off and pushed the car back to my place ( its not easy to push a gsx by your own, now i know haha).

I left the car sit for a few days and on saturday i got some oil, fileld the engine and fired it up, it looses about 1 lt of oil each 5 mins, and theres an odd noise ( like mating turkeys) coming from the transmision, when you push the clutch it stops.


I have an oe exedy replacment, and i instaled the Trow that comes with that kit.

[ame=http://www.youtube.com/watch?v=p_kHhTrERQQ]wtf gsx weird - YouTube[/ame]

So my question is whats the most common seal that gets blown? (crank shaft, oil pump, balance shafts , etc.)

or where should i look for the leak?

And for the transmission what do you guys think?