That's a pretty common problem with light bars on lots of trucks. Was the same problem on my 18 Silverado. You have some decent cheap options for that though.Thanks and sorry you are going through this same situation. I may just have to start a specific thread for the Diamondback. Would prefer a Renegade cover, but it's a no go with Ramboxes...and that doesn't even consider the black vs silver rail situation. Hard to imagine why all these trucks didn't ship with the same rails and make the stock Mopar folding cover work with say....the silver rails. Then they only need to make silver rails and customers would be in this situation for upgrades.
Another future upgrade, tailgate LED light bar (Putco blade) I'm looking to put on...similar situation. According to the threads, I'll likely have to put in some spacers to compensate for a non-flush mounting surface. Not just buy the item and put it on. I guess that's part of taking some pride in making it all come together, but still.