
The gap between the back glass and the door can be adjusted with the back glass. In and out at the top adjustment can be found at the very bottom of the glass tracks.
Here's the adjustment locations on my '62. Not totally the same as your car but should give you an idea as how they're adjusted. (Starting with post #472
https://www.forbbodiesonly.com/moparforum/threads/taking-up-new-residence.114133/page-24
On my old '62, there is a cam that stops the regulator on the down position. You loosen the lock nut and turn the screw left or right to change the position of the cam to where it makes contact with the regulator.Thanks! This is helpful.
2 Questions: How does the door downstop adjustment work? Where is the door upstop adjusment?