OER Parts offers a wide selection of Coils for your 1966 GMC G1000 Series. OER Parts offers 1966 GMC G1000 Series OE Quality Ignition Coil, 1966 GMC G1000 Series Replacement Ignition Coil Premium Quality, 1966 GMC G1000 Series HEI Ignition Coils, 1966 GMC G1000 Series Chrome Ignition Coils, 1966 GMC G1000 Series Zinc Plated Ignition Coil Bracket, 1966 GMC G1000 Series Ignition Coil Resistor, and 1966 GMC G1000 Series Chrome Ignition Coil Bracket & Chrome Coil Cover.