I could be wrong on this, because its been ages since I've looked at these things (they were removed from my car before i bought it), but i think you just take those 2 screws out, the light slides forward out of the bumper, and then you un-clip the light out of the back. As for damaging them, just be easy with them, and if they are having a hard time coming out don't yank them. Also never touch the actual bulb of the new ones you are putting in. Supposedly it will cut their life down drastically.