Diagrams don't seem to include a near-by piece of push-on weatherstripping that installs on a metal lip under/along the rear window. It is simple u-channel rubber. (Opening the trunk caused it to bind and increasingly pull off.) No adhesive as far as I can tell. I have scoured the net for this part. Can you confirm that it is EXCLUDED from the rear deck lid seal? And, if you know the name of this part and how to get a fresh one, please tell me. Thanks very much.

Hello, I believe what you're looking for is part of the rear glass if it's a slim piece of rubber trim that sits below the actual glass (see link below). https://www.carid.com/ford-oe/rear-back-glass-mpn-be5z5442006a.html That trim piece is not part of the rear deck lid seal and is totally separate. Hope this helps