Headlight adjustment issue?

[jfeltT4R]

So i just installed a pair of DDM HID's last night and everything works great. The only problem is that my passenger side beam is significantly lower than the driver's side.

I know there are adjustment nuts on the OEM housings (lower nut is up/down, upper nut is L/R). Since my issue is vertical I've been trying to use the bottom nut. The gear is turning as if you were using a phillips head in the little slot, but the beam is not moving anywhere. Has anyone else had this issue?

 

[hrt4me]

maybe the plastic gear threads have worn?

 

[jfeltT4R]

maybe the plastic gear threads have worn?

The gear threads look alright to me. I might just end up pulling the housing off and checking where that long adjustment bolt runs through. It has a bit of rust on it so it might just be time to upgrade to the clear 99-02 housings. Thanks for the input.

 

[MountainBiker]

I had a similar issue. What solved it was to adjust the side angle, moving the light outward significantly. Once I did this, the vertical adjustment worked. Not sure why, as I haven't taken it apart to see how it works.