Not just this body or GM for that matter. After many years (high  heat
& smoking will accelerate the problem) the foam backing of the
headliner fabric will turn into mush and the fabric will detach from
the fiberglass headliner shell.

Take the car to an auto trim shop and they can fix it. Proper fix is
to remove headliner assembly, strip off old fabric and remains of the
foam and install new fabric.

Do a Google search and you'll find some writeups on this project, and
many of the better fabric stores like Jo-Ann Fabrics has the proper
material in quite a few colors (forget getting the material from GM -
WAY too expensive).

Regards,
 Bill Bowen
 Sacramento, CA

The foam between the backer board and fabric degrades over time. Any
auto upholstery shop should have or can get new material for you. Or
there are online places. You'll also need some 3M 08088 headliner
adhesive (some have problems with adhesive made by others).

I've seen two methods, one leaving the backerboard installed, and the
other removing it. I used the second when I did mine. The most
important part is get all the old foam off the backerboard, old glue
can remain. There's a brief rundown of the second method here:
http://tech.oldsgmail.com/int_headliner.php

88CSC
--

i been buying healiners and glue from jc whitney . pretty good
stuff,cheeper price too.

http://www.minibite.com/america/malone.htm