When i got my 91 GMC Sierra pickup the headliner was fine. But after a year of me driving it with both windows down all the time it has completely failed and touches my head while I drive. I know the PO and he told me he never drove it with the windows down. He only used it to drive around early in the morning when it was cold to check his coin op car wash and just ran the defroster. Im planning to pull it down and spray glue it back together.