67 fastback interior

well

1. they are screwed in
2. they are overlapping

I had to use some sliding and pulling

the large piece under the rear window needs to be pushed up and forward (toward the front of the car)

Did you take off any of the stainless trim? if not that needs to be taken off as well. Just have to be careful when pulling off because the retaining clips tend to break...but furtunately you can find those clips on most mopar restoration sites e.g. year one