Constant as in my truck has been sitting since Thursday and it's been dripping this whole time.

I did a search to see if I could get an answer and didn't find one. Like I said, my truck has been sitting since Thursday because I use a Cavalier as my daily driver. I looked this morning before I went to work and actually saw it drip. I'm wondering if there's a hole in my oil pan or something. I've never hit it on anything and it's been leaking since I bought it.

Any ideas? I thought it was the rear main but wouldn't that only leak while it's running and for a short period after I shut it off? I haven't been able to get underneath it and clean it up to see yet.

 

If it's the rear main then you will have an oil drop on the bottom of the transmission right behind the y-pipe.
Wipe up all the oil you can see and then check it after a while to see where it is coming from.