if there is oil making this area wet what would this mean?

 

Where is the crack specifically? Front, rear, side? Need more info to help.

 

It's probably from the draft tube....wipe it off and see how fast it comes back.
If it seeps out of the little metal cover on the bottom of the bell housing after you wipe it off, it's probably the rear main seal.

You might also check #6 valve cover, sometimes they'll leak in the back and run down the trans adapter.

 

its the crack at the bottom of the bell housing and #6 cylinder was leaking a couple weeks ago but i have recently changed all 6 gaskets that may be were it was coming from i will clean it off and check again.