You are correct sir they are "glued" to the housing however after the backing plate is modified you adjust them as you would regular mustang lights with the same screws.
You can change the 9004 bulbs with HID conversions however since the lens is not made for the angle of light the HID light bulb produces a good light spread is hard to achieve. You get a better light spread with the "ultra" clear housings since the reflector is used to spread the light. Also with the conversions you lose the "hi" beam since most of those bulbs do not move as the Bim'rs do.
don't the bi xenon lights have high and low beams? I just don't want to spend the 200 or so dollars to put bulb conversions without the lenses from the newer cars as well. How many inches wide should the lenses be to fit with as little cutting to the headlight assembly?
Yea, I finished a few weeks ago actually. I just haven't had a chance to take new pics of the light output. Here are some pics of the final product. I still have to make some more adjustment to get the lights to line up nicely. Once the weather clears up, I'll have more pics.