This is a bit of s long shot. I replaced the dew wipes on one of the '86 birds, but now I realize how crumbly the window channel rubber is. Does anyone have a good set that they are interested in selling?
Search for Lincoln mark 7 they are a perfect match.
http://www.steelerubber.com/search?year=1986&make=ford&model=thunderbird&style=2-door-sedan (http://"http://www.steelerubber.com/search?year=1986&make=ford&model=thunderbird&style=2-door-sedan")
They should have what you need brand new.
Unfortunately Steele rubber doesnt make those.......yet