hMMM Ok then.

I am new to this forum but I think I can shed a little light on this one...sorry. I make headlamps for a living. The piece of steel NERv removed is called a bulb shield. By removing this he has made his lights illegal. It accually blocks light from hitting sertain areas of the headlamp relector and bouncing into on coming drivers eyes. It will not give you any extra light where you want it.

You will have problems seeing when it rains real hard or in fog. I would start looking at some in the junk yards. You may find people flashing thier high beams at you a lot.

By the way, if you're very careful, you can open the headlight housing. I managed to pry mine open with only one minor chip at the mating surface (Had to clean inside them due to not letting the silver paint dry enough on my turn signal bulbs). I then glued them back closed with a ton of silicone glue...

sounds like he already distroyed the bulb shields though :?

question, how can it block light from the reflectors when it is mostly ahead of the bulb and a tno point inbetween the bulb and reflector? if anything it would make some light go back to the reflector, im sure its designed to block the the bulb itself from being seen by uncoming drivers, and trust me it has given me more light where i want it, straight ahead, i always felt the headlights didnt project far enough in front, my 1990 acura legend lit up the road better with it'* stock setup than my lights do now, which i know are quite illegal because i have removed the cap and i also have 9005'* in the low beams

If you really want the technical explanation…… here we go. The light comes from the filament in the bulb. This emits light in all directions. The low beam bulb has a painted cap on the end to prevent light from shining forward. There are two types of headlamp designs on the Bonnevilles. Lens optics and the newer style, reflector optics. With lens optics the reflector makes a light pattern like a flashlight, just a round spot. The little bumps on the lens bends the light in the correct spot in front of the car. The reflector optics has a clear lens so it uses little bumps on the reflector to redirect the light to the correct spot in front of the car. The bulb shield blocks light from hitting certain areas of the reflector and bouncing in the wrong spots in front of the car like the eyes of on coming drivers!!!!!

If you remove the shield you allow this light to bother other drivers. The fact that you put a high beam bulb in place of a low beam bulb is very dangerous. The bulb puts out a lot more light and the filament is not in the correct location relative to your reflector, sending light all over the place. It does not have the end painted and will not allow your headlamp to maintain its moisture tight seal and will sooner or later cause your lamps to fog up.

I hope all the people using this site don't get pissed with me about the length of this but I feel this is very important. I have gotten more informating off this site than any other place I have ever looked.
Thank You and keep up the great work and communications

Very informative and I'd have to agree 100%.
9005'* as your low beams is a very bad idea.. you're gonig to cause an accident!

It is. Nothing wrong with the length of your post, and thanks for explaining it. I had forgotten about the focal length problem, but you're absolutely right: when the filament is set the wrong distance from the reflector, such as if a high-beam bulb number was stuck into a low-beam reflector, the optics get all screwed up and the beam pattern ends up being something other than what the designers intended.

Well, that answers my question about switching bulbs around....hahaha

i havent seen any difference between the filament of the 9005 and 6, only difference is the 9005 is a little thicker, same position tho