I have read on here in other posts before that there have been some issues on the upper part of the qtr to door missing part of the extension on the qtr so to speak. Not saying that’s your issue but compare the drivers side in that area closely. Another problem I have noticed with the replacement quarters is the upper part along the window channel (with pop out windows) is not as wide as original and may need work. If you push the door closed look at the width of the top door along the window vs the qtr you may see a noticeable width difference. Hopefully on yours they are the same width. If not it’s going to take some extra work to make right. I am by no means an expert but just things I have read and seen.
Here’s a good posting which may help. I know it’s a 70 but it addresses a couple issues I’ve seen and read about. And I’ve followed some of GeorgeH posts. He will give you good advice.
Advice needed on installing AMD full quarter on 70 Duster
