I am seeking the ('83-'84 Hurst/Olds) two reinforcement pieces in very good to excellent condition for the left and right side air dam pieces that are installed in between the (air dam) side pieces and the retainers for them that mount on the fender. The GM part numbers are 22522790 (RH) and 22522791 (LH).

 

Are these the thin urethane strips or the metal plates or the c-channel bracket? These PN's are not part of the Air Dam setup.