So Chris, I also have my crew cab headliner out of my '73 - it came our fairly intact. Trying to decide what approach to take in repairing the rough spots and tears. I've brushed all the old failed foam from the fiberboard, and now I'm considering a thin coat of resin, top and bottom in order to strengthen it some, then go over it with the old vintage foam backed perforated vinyl. I prefer that to the newer velour type.
Thoughts?