Yes, it is original. It is not as flexible as it was years ago. It seems to do the job. We had some very hot weather here, with no over heating problems.
The seal is very similar to a wooden garage door nail-on bottom seal, just larger.
It sure is! Those are hard to find in used condition without cracks, not even sure if correct repops arw available. I pulled mine off my 66 Valiant, it was really dirty, can't remember if it had cracks or not but I never re-installed it. I am going to dig it out and see....
