I'm referring to the 2 metal clips that are screwed into the bottom of the rear windshield opening to support the glass at the proper height. There were no trim clips or support clips when I got the car and all the holes were filled over. I have photos of where the trim clips go and have installed those but I have no reference for where the glass supports go (how far they are spaced apart and how far from the sides.) Thank you for your response...
I was able to get my answer so I'll share it with everyone in case others want to know in the future. Looking at the photos (this being a Challenger SE) and observing the area where the stainless window reveal trim goes, the 2nd hole in from each side is where the glass support goes. I have to give a big thanks to Resto-Rick Kreuziger for helping me with this.