Here is a link to both sides. Ignition and headlight side. Both must be used and grounded to the main gauge cluster plus a wire is needed from that mounting points to the emergency brake with a small screw with a round spayed connector. If you do not do all you will have a bunch of stuff screwing up if working at all
www.chicagomusclecarparts.com

68 CHEVELLE ELCAMINO DASH PARTS
1968 MALIBU SUPER SPORT INSTRUMENT PANEL BOARD PARTS
