If lightbulb fixture for your tail light is corroded & won't work, you need a new one. I found one at https://www.yearone.com/Catalog/1982...s/bulb-sockets.
It's Part 829.

But look around; these guys are pricy.

Rock Auto has them.

https://www.rockauto.com/en/moreinfo...t=4132&jsn=874


*edit* that's for Firebirds. I don't know if they are the same. Below is for Camaro (1989, I don't know if they changed over the years)

https://www.rockauto.com/en/catalog/...tor+plate,4132

You can get em at the corner parts store as well.

It's not rocket science... if it fits 1157, and has the right tabs to go into your TL housing (virtually EVERY GM and many other mfrs used the same footprint), it'll fit your car. Doesn't have to directly match the OE GM part # for 91 Camaro. That's basically sucker bait.

Yes AFAIK Camaro & Firebird sockets are the same. The bulb functions and all that aren't, but the sockets are.

The Year One socket looks a lot like the Dorman socket for a fraction of the cost, plus there are discount codes posted here for Rockauto

O'Reilly had them in stock.