When it comes to restoring a classic car, it's common to tackle the biggest jobs first, such as repairing engine and suspension issues. Understandably, interior restoration isn't usually the top priority, since many interior parts are cosmetic in nature. However, there's one interior issue that can turn into a major annoyance every time you drive the car: a droopy, sagging headliner. So, today we'll go through some of the steps to replace the headliner on your third-gen 1982-92 Camaro or Firebird/Trans Am.