Tighten, or get new door hinges. Early firebirds had very heavy doors, so the hinges tend to wear out.
You can fix a sagging door on a 1996 Suburban by replacing the door pins and the bushings.
Three-fity.
How do yo fix a stuck driver side electric window on a 1998 pontiac firebird.
With the Steel cross bars
Replace hinges.
Mine has the same problem, and it is because the doors are sagging slightly. Instead of paying to have it repaired, I just roll the windows down very slightly, and it solves the problem until I can afford to fix the doors.
If you go to Napa they sell push pins to hold up sagging headliners.
Give more info on what you have tried.. Go to question/answer # 19 on the Firebird faq's list, "If a 95 firebird starts right up..." Maybe this will help?!
Will require more specifics, what part you want to fix in the rear brakes?
Air bag switch is making contact possibly from the cover sagging I am working on one right mow I will try,to prop to sagging cover
Check out this link for comprehensive information regarding the 4th generation firebird headlight fix. http://www.bfranker.badz28.com/headlightfix/
like this.... http://www.youtube.com/watch?v=SVVozUkfDO4