Gear Oil Leak

Alright, so I noticed a couple of days ago that my gear oil was starting to leak out of some where. Does anyone have any ideas on where it could be leaking from? I drive a 94 geo metro with a manual transmission. And it now has 187K on it.

usually its a axle seal

Clean off the seals and the area around them, drive the car around for a bit then check the seals you should be able to tell if they are leaking.