Looking for a part/part number
 

Alright, I've looked at parts diagrams and can't find shit, what the fuck is this thing called?

The part circled in red is ripped on my S14 and I want to replace it. It's where the window sits inside of it when it goes up & down.

The actual mirror assembly sits on the outside of it so I can't even buy that to replace it.

http://i.imgur.com/HlVu681.jpg

I checked fast real quick... From the screen shot I uploaded and a few other shots it appears it is part of the door? Can it literally be unbolted & removed from the door?

Bumping this in case someone comes across this and is looking for the same part, I finally found it.

http://www.courtesyparts.com/nissan/...&position=left