How do you change a headliner on a 1985 2 door caprice?

To change the headliner on a 1985 2-door Caprice, start by removing the trim pieces around the headliner and gently pull down the old headliner board. Remove any old fabric and adhesive, then cut new headliner material to size, leaving extra around the edges. Apply adhesive to the board and the fabric, carefully stretching and smoothing it into place. Finally, reattach the headliner board to the roof and reinstall the trim pieces.