Transmission Leak

[Smurfeh]

Alright guys, I've been trying to find a part catalogue part number for an o-ring but cant seem to find it hoping someone here might have what I'm looking for.

Transmission is a 4L60e 2007 new body style.
The Leak is coming from the Circular Electrical plug mounted on the upper face of the transmission right beside the heat shield you guys know the one... its on the passanger side of the transmission. Its just pouring out of there. Obviously there is an o-ring or seal there that has gone south on me. Anyone ever have to change it? Also if someone can hook me the Part number for the seal or a Parts catalogue reference would outstanding!! Thanks guys!