i am in the process of doing a 99-00 conversion and have noticed another difference in the headlights (besides the ones that were metioned in the sticky). on the top of the headlight (you have to raise the hood to see this), there is a bubble level inside the 96-98 headlights to aid in aiming them (i assume- have no idea what else it would be for). the 99-00 headlights do not have this level, however all of the other adjustment areas appear to be the same. in fact, the entire back gray plastic piece looks to be identical. the only change between the lights are the front clear plastic piece, and the inside of course. just thought i would mention this, fyi. anyone know why honda got rid of the level? i think it is pretty cool, although it didn't help me aim mine that much. maybe thats why they left it off, extra cost and less use. who knows...