I don`t exactly know what this black rubber u channel does. It obviously protects or seals the water tray to body just below the rear windo. Does anyone know where to purchase. I just spent 2 hrs on line looking. The channel measures 1/2 in tall. 1/4 thick and the slot is 1/16in.
If you don’t have the roll down rear window. The rubber goes around the gl*** seams at the top. Add some sealer around the opening and put the gl*** in place. Then put the garnish molding in place. Make sure you don’t stretch the rubber. I use super glue at the top seam. Hope this helps