OER Parts offers a wide selection of Coils for your 1971 GMC All Models. OER Parts offers 1971 GMC All Models OE Quality Ignition Coil, 1971 GMC All Models Replacement Ignition Coil Premium Quality, 1971 GMC All Models HEI Ignition Coils, 1971 GMC All Models Chrome Ignition Coils, 1971 GMC All Models Zinc Plated Ignition Coil Bracket, 1971 GMC All Models Ignition Coil Resistor, and 1971 GMC All Models Chrome Ignition Coil Bracket & Chrome Coil Cover.