Not sure if anyone else has found this or not. My power rear slider weather stripping is bad. Everything I've read or been told says you have to buy the whole rear window assy. I have finally found the part number for only the weatherstripping. It includes the left and right sides as well as the bottom. Cheapest place I could find it was Gaudin Ford Parts for $69. Pricey, but at least now it can be fixed. Hope this helps others out.
WEATHERSTRIP | Genuine Ford | 6L3Z-1542052-A


6L3Z-1542052-A