Jacksun,
Those little "V" shaped clips, or as mine were "W" shaped clips go on each side of the defroster vents in the molding to support the molding for strength. The area were the defrost slots are is open and much thinner than the rest of the inner windshield molding. Of course, these clips are no longer available....even after market, so I made new ones from the metal wires from paper binding clips. Just keep one of the old clips for a pattern.
Tim