more specifically the reverse lights as theyre out and i cant figure out what bulb it is

 

Try the search feature on this forum. I'm sure somebody has posted a list of the bulbs. If you can't find anything you can always go to Super bright LED's site and enter your model and year for a list of the LED alternatives or just the bulb numbers as originally equipped

 

The owners manual lists the light bulbs. You still got that somewhere?
If not, then the bulb is probably an 1156 but it would be good to verify.

 

Yes, 1156 and for the signal lamp too.

 

These are LED reverse lights, install just like stock. For reverse lights you don't need to replace the flashers, add resistors or do any other mods. In addition to being brighter they light up a bright white instead of the yellowish color.
1982-92 Camaro/Firebird LED Reverse Light Bulbs (screamingchicken.com)