[carfanatic89]

theres two possibilities and nethier is pretty, it could be your rear main seal or your transmission input shaft seal, there not easy to fix either you have to take the engine out or drop the transmission, but once youve do that the hard part is over just pull the flywheel off and pull out the old seal and replace, seals are pretty cheap to. now if its the transmission seal im not 100% sure but i think you have to take off the bell housing and is pretty much the same procedure