This restored trim piece mounts to the back of the vent frame of any 1967-68 Mercury Cougar or Ford Mustang. Passenger side only, made of galvanized steel. Full part name by Ford is: Retainer, vent window division bar glass run. The felt inserts will generally not be serviceable. See also C7ZZ-21546-A.
Check out our video below for helpful tips on disassembling your vent and quarter windows: