Someone may know this and offer a suggestion better than the one I have been told. Trailer lights. The ones in the back specifically. Usually when I go to change out one, simply take my flat screwdriver pop out bad light, hook up new one and pop it back in. A few of our trailers though don't have the 4 inch rubber grommets. You have the light and a "chrome" ring around the socket that is riveted to trailer. The suggestion given to me was you have to drill out the rivets then either get the grommets or self tapping screws to put the ring back on. Is there a simpler way that doesn't involve drilling out the rivets?