yo chaindrive,
As desert4wheeling advised; could be either a section of the
1 41610 Outside Weatherstrip, Tailgate - SEE DIAGRAM BELOW This is the inner and outer belts on the tailgate that the window goes between. Clips are made onto the belts.
available at our sponsor, Jeff's Broncograveyard
http://broncograveyard.com/bronco/i-34543-tailgate-weatherstrip-inner-outer.html
Weather Seal, Outer, Rear Glass Run Seal Removal (broncograveyard pn 34543 for 80-96); "...Use a screwdriver to gently pry the OUTER weatherbelt up just enough to pop the cllps loose. I've pulled the far end out to show the clips, but it should be left straight until ALL the clips are loose, then lifted out without bending. The inner seal is removed the same way, but use a rag between the screwdriver and the paint..." by Steve
or
14 41616 Upper Corner Seal, Tailgate Weatherstrip End, Right
Item #34544A - New
1980-96 Ford Bronco
Pass Side
http://broncograveyard.com/bronco/i-34544A-weatherstrip-end-right.html
If you only need to change the weatherbelts, or if the glass needs to come out, remove the ***** from each end seal and rotate them up toward the glass to disengage the hooked end from the lip inside the window opening. Then remove the ***** at each end of the outer weatherbelt.
by Steve
96 Bronco-F-Series Workshop Manual by motorcraftservice
https://www.motorcraftservice.com/pubs/content/~WSTJ/~MUS~LEN/21/STJLEFT.HTM
see
Section 01-11: Glass, Frames and Mechanisms
REMOVAL AND INSTALLATION
Item Part Number Description 1 41610 Outside Weatherstrip, Tailgate 2 23394 Window Regulator Electric Drive 3 380642-S ****** Outside Weatherstrip-to-Tailgate 4 42072 Inside Weatherstrip, Tailgate 5 40700 Tailgate 6 57472-S2 Bolt, Back Window Glass Run-to-Tailgate 7 422A20 Back Window Glass Run 8 387392-S Bumper 9 44000 Tailgate Window Regulator 10 422B18 Back Window Glass Bracket 11 57472-S2 Bolt, Tailgate Window Regulator-to-Tailgate
(4 Req'd) 12 42006 Back Window Glass 13 43505 Lock Cylinder, Tailgate
14 41616 Upper Corner Seal, Tailgate 15 376389-S ****** Tailgate Upper Corner Seal-to-Tailgate 16 14559 Clip, Window Regulator Switch Retainer 17 43629 Retainer, Tailgate Lock Cylinder 18 385323-S Rivet, Back Window Glass Bracket-to-Back Window Glass 19 234A44 Door Window Glass Bracket Spacer 20 234A46 Door Window Glass Channel Bracket Retainer 21 234A24 Window Regulator Drive Gear Kit A — Tighten to 6-11 Nm
(53-97 Lb-Ft)