Thanks for the replies. The factory cardboard liner is missing from my car. I have another 72 duster and it still has the cardboard headliner but it is already starting to sag so I don't know if it can be reused or not if it was recovered. Have also given thought of putting a fabric headliner in like the 71 and down cars have. Guess I will just have to decide what will work best.
Thanks again, Matt