Reproduction 1975-1982 C3 Spark Plug Wire Support Lower RH vertical ignition shield bracket. The sire support fits inside the right hand vertical ignition shield. This bracket holds the rubber 4 hole spark plug wire grommet. Keep your plug wires safely secured to prevent unnecessary damage and maintain a clean and tidy engine bay with our 1975-1982 C3 Lower Right Hand Rear Spark Plug Wire Support! This wire support is a direct replacement part that requires no modifications for installation.