from an old post:
I got a complete kit from
Obsolete & Classic Auto Parts
in Oklahoma City OK
Part number: S21-41165-190 "Door Window & Qtr Felt".
Cost me $79 plus shipping a year ago Has everything for all doors and windows.
I did the horizontal felt outside the driver's large window as the metal holding the original had rusted to death. The replacement piece curves around the vented window as well, making the job challenging