What is the metal piece that holds the front lights in on a 1991 olds 88r
it is called a bezel.
The bezel, otherwise called the headlamp door, is the trim piece around the light itself. If you mean the piece that actually holds the lamp into the car, you mean the shim, or tab, that you have to lift in order to pull the light out. That is what wedges the lamp in place.
I always called the headlight bucket and the piece behind that the core support.
Looking for a Used Eighty-Eight Royale in your area?
CarGurus has 38 nationwide Eighty-Eight Royale listings and the tools to find you a great deal.
Search Oldsmobile Eighty-Eight Royale Questions
Oldsmobile Eighty-Eight Royale Experts