you want the oil from the angled plug on the front edge of the housing. I want to say it's the bottom one but I can't remember and I didn't take pictures. There are two of the plugs though, one is like | and the other is like \ so it's pretty easy to see.
You'll need a propane torch to heat the thing up though, you'll never break that plug free otherwise. In a vise you'll wreck the housing, and on the car, good luck! /ubbthreads/images/graemlins/uhh.gif