Sean, Supposedly after you turn your wheel all the way to the right, take the tire off the car and take the speedometer cable loose from the angle drive, then the angle drive is supposed to rotate freely on the large nut to which it is attached. You turn the angle drive so that the screw on the bottom is now on top. Remove the screw and put the oil in this screw hole. To help things along, pull the plastic cap off of the center hub (this is exposed when you remove the tire) to expose the cable going to the angle drive. Spin this with your fingers while you put the oil in. It will help it soak in better. I oiled my angle drive for the first time a few days ago, and I couldn't figure out how to turn the angle drive over to get the fill-screw facing up. DMC Joe tells me that the thing must be seized on there. I oiled mine by spraying the screw hole with white lithium grease from a spray can through a straw. I could feel the straw hitting the gears as I stuck it in the hole and turned the cable. The next time I oil mine, I'm going to hose the thing down with PB Blaster or Liquid Wrench to see if I can get it to rotate so the screw hole will be on top. Hope this helps, Walt Tampa, FL