My trooper just started leaking alot of oil from something on the passenger side of the engine just in front of the transmission pan. Its a round opening with a snap ring holding in a round rubber piece. not sure what it is. Any help would be greatly appreciated!

 

how about a picture? i just noticed a small leak, of what could be trans fluid from the front of the engine on the pas side.

most of the oil seems to be dripping on or from a black hose