OER Parts offers a wide selection of Coils for your 1966 GMC Suburban. OER Parts offers 1966 GMC Suburban OE Quality Ignition Coil, 1966 GMC Suburban Replacement Ignition Coil Premium Quality, 1966 GMC Suburban HEI Ignition Coils, 1966 GMC Suburban Chrome Ignition Coils, 1966 GMC Suburban Zinc Plated Ignition Coil Bracket, 1966 GMC Suburban Ignition Coil Resistor, and 1966 GMC Suburban Chrome Ignition Coil Bracket & Chrome Coil Cover.