There is a plastic piece that runs across the rear window from side to side at the bottom on 1971 Javelins. It is the rear most portion between the package tray and the window. Mine is crumbling, cleaned the rear window from the inside, barely touched it and it just started crumbling. Anyone have one or know where they can be found. Either original or repro. I'd prefer green, but will dye a nice one. It's the only plastic in the interior that seems to have an issue. ~John