Here are the complete  AC ducts and lap vents for a 1966 and 1967 Pontiac GTO in pretty nice condition. The long main AC duct that mounts to the metal plenum on firewall has all notches and holes for mounting screws in great shape. The center duct for center vent is 66 or 67 style but should also work for 64 or 65. Lap vents have just a little pitting if you can tell in the pictures, front of them look pretty nice. Comes with original bracket the mounts under steering column to mount lap vent to. Also has the 2 elbows that connect on the drivers side. This setup actually came from a 1967 GTO but the same for 1966, and like mentioned should work for 64 and 65. I guess that's it, ask if you have any questions. Thanks