e21 trans/transfercase

[fultron]

http://www.geocities.com/fultronracingdevelopment/tran.jpg
Hey, where do you think this fluid is coming from? (this is a picture of the transfer case on my 1982 bmw 320i (e21)) im just wondering if this has something to do with my clutch(slave/master cylinder) problems, or is it just a transmission fluid leak, or is it engine oil coming from the leaky oil pan. Let me know what you think. Thanks

[ZfrkS62]

It's too far back to be oil pan. I'd say it's the output shaft seal for the driveshaft.