Some of that stuff was discontinued. You can still get the fenders. I know for Dusters they discontinued the quarter skins, but you can still get full quarters. I can’t remember which year range they discontinued for the Darts but they did discontinue one of the year ranges. So you can get the full quarter but you may have to convert the side marker.
Some of that I think will come back, they have the tooling it was just a demand/shipping cost deal. But yeah if you need it tomorrow that doesn’t help.
It’s not like it’s a new problem, you can get more parts now than almost any time before. With the possible exception of about 3 years ago. But that was way better than any time before that.