This is the full kit needed to fit the cable toggle remote factory mirror though the door trim on the 70-81 Firebird & Camaro.
The Plate retainer fits up to the inside side of the door trim, the provided screws fit though the chrome bezel , through the door trim card and into the plate. The cable ball head seats into the chrome bezel and is then retained by the provided C clip.
You will need this when fitting LH remote mirror to the vehicle or if bits are lost etc.
Stock part.