Door Panels and Air doors

The doors changed in 73. They got rid of the quarter window and made the glass bigger to make up the difference. The window regulator is also different.
The door in 73 had a plastic upper trim piece and the earlier ones had painted metal that was actually part of the door. Im not sure if the actual door panel was a different size or not.

On the air door, its part of the air box on a 73 for the passenger side. I think the driver side bolts on to the cowl.