[george w]

Are you sure the rubber is supposed to move with the glass ?? It sure seems that the rubber and it's metal backing should stay in place in the frame and the glass slide within it. I suspect that the rubber has bonded to the glass and has separated from itself leaving part of the weatherstrip in the door channel. I can't imagine that it was designed to have metal move against metal.
Of course if you have it working, then that's what counts. Just for grins I'll check the parts book and see if the glass comes with the weatherstrip attached. I suspect not and that the weatherstrip channel is intended not to move.

 

[george w]

If you can break the felt free from the glass you may be able to glue the felt channel back to the metal backer using weatherstrip adhesive. Roll the window down as far as you can then run some adhesive in the metal channel and press or slide the felt channel back in place. Once the weatherstrip adhesive sets up you should be able to raise and lower the window more easily.