I had the window down on the way home and i thought i smelled oil, so when i got home i got under the car and my tranny is wet with oil!! I dont know what to do.



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Has your motor oil level dropped?
Tranny oil level?

I COULD be:
rear main seal
oil pan gasket
CV seals
output shaft on the tranny, if possible.

I just did my rear main his summer and it's leaking again -1/2 quart per 100 miles=about daily! Sucks!

 

As m735is said, however I would recommend trying to get under there a bit and cleaning up some of that leakeage cause it is really hard to find where it is leaking when you've been driving and the oil is all over. Then set some cardboard under to see if you are getting drips/flow to help narrow where it is leaking.