OER Parts offers a wide selection of Coils for your 1970 GMC Truck. OER Parts offers 1970 GMC Truck OE Quality Ignition Coil, 1970 GMC Truck Replacement Ignition Coil Premium Quality, 1970 GMC Truck HEI Ignition Coils, 1970 GMC Truck Chrome Ignition Coils, 1970 GMC Truck Zinc Plated Ignition Coil Bracket, 1970 GMC Truck Ignition Coil Resistor, and 1970 GMC Truck Chrome Ignition Coil Bracket & Chrome Coil Cover.