Shaky headlight
https://ls1tech.com/forums/stereo-el...headlight.html
Those tabs (stops) come with white plastic covers on them from the factory. These get brittle and break off over time and can lead to some of this looseness - so you might check that. The best solution (you should find some threads here) is to use short sections of heater or fuel hose and slide them over the stops to take the place of the missing stops.
Another thing that can happen is that these tabs can get bent over time. You may also need to bend them a little bit to get them in the right place.


