theres two slots in bottom corner of each headlamp opening near the center rib
slide spring in with hook facing up and the tail come back out of the other slot , there was also a little plastic clip that gets slid in the back between spring and header after the spring is in place
stick housing in opening ..tilt housing out a little at bottom and slide housing into top adjuster screw slot then rotate up while sliding into side adjuster slot
with housing in take a hook ( a hose saver tool works great) and pull the spring forward and hook it onto the dimple on the face of housing ,,its so simple a monkey could do it in the dark
as for the bulbs being thicker causing issue with the spring ..absolute hogwash , the bulb can not change the way the housing sits in the header panel.. end of discussion on this
if the bulb is thicker it could only change the way the outer ring with the four screws sits