Difference between 67-68 barracuda doors?

If you have a chromed phillips head screw through the upper metal part of the door, its 67. In 68 the screw went inside the door and a plastic plug filled the hole.
The vent window assembly will move if all the hardware including the aforementioned screw is loosened. A stud behind a plastic plug in the bottom of the door adjusts the height.
Now I'm going into the tough part... Dont do squat unless the door hindges are like new. You first need to have the door itself aligned and operating properly. Then align the vent wondow and door glass to their seals. Finally you'll adjust the quarter window to the door glass.
If you adjust glasses today and renew the door hindges later, you'll start all over with glass alignment.