How do you mean level? Like people are telling you that the lights are all out of wack or is it literally messed up. Because most of the headlights I ever see on stangs aren't usually even. :shrug:
I was told to adjust the lights the Allen screw adjusters are located to back of the light mount if you are looking from above. One adjusts up and down while the other adjust side to side. If I'm wrong don't blame me. There, I think I have all my Internet bases covered.
yup, there are two adjustments on the back (one left and right one up and down) but i think a normal 6 or 8mm socket fits on it, however it is really hard to get to. They make a special tool for the headlights.
Not sure about your GT but my Cobra owner's manual has instructions in the back on how to adjust the headlights. It shows how to draw the lines on wall and everything.