340cpe, I made a set of templates from my disintegrating sail panel boards. I still have the templates for my next Charger and they are dead on to the panels I pulled out. I'll post a photo of the ones I made from the templates which are now installed. Alaskan T/A, thanks for the info. I thought maybe the sail boards were for sound insulation because it reminds me of an old version of DynaMat. There are hard plastic panels which install over the crumbling sail boards and headliner and cover most of that area. Thank you for the info.
Terry

Sail Panel Board Replacemnet (Medium).jpg