How To Replace Door Gaskets 1992 Buick Lesabre

Driver door gasket was torn, rest had shrunk, lost tension, and gaps caused wind noise.
Since replacements were available, I decided to replace them all.
If replaces aren't available, I'd recommend removing, cleaning, and conditions old seals.
Before installing, crimp the retaining slot cosed a little bit with a pair of pliers at the corners for better retention.
Silicone could help but would need to be secured in place until dry.