pop out quarter window rebuild?

is that flocked plastic seal available new

There are reproductions available currently for B-bodies and are described as working for A-Bodies too. They must be trimmed to length. I've not seen them in person to compare. The originals were left and right specific. The B-body repros are not. 8 years ago I found NOS pieces - a small miracle - and paid for the miracle.

Here's an example: Restoration Specialties and Supply, Inc. - Search Results for "CHRY32230"

The illustration looks different than the actual piece, so I'm not sure. They might be fine. Not cheap, but less than what I paid...