Duster quarter window fitment

I had the same issue with my 74 Duster rebuild. I overhauled the quarter windows and got all new gaskets. All the attachment holes lined up when Input it back in, but there was still a small gap. After messing with it a few days with no luck, I chose to use some good black sealant to fill the gap and smoothed it down. It keeps water out and you have to look pretty close to see that I used sealant.