OER Parts offers a wide selection of Coils for your 1966 GMC K1000 Pickup. OER Parts offers 1966 GMC K1000 Pickup OE Quality Ignition Coil, 1966 GMC K1000 Pickup Replacement Ignition Coil Premium Quality, 1966 GMC K1000 Pickup HEI Ignition Coils, 1966 GMC K1000 Pickup Chrome Ignition Coils, 1966 GMC K1000 Pickup Zinc Plated Ignition Coil Bracket, 1966 GMC K1000 Pickup Ignition Coil Resistor, and 1966 GMC K1000 Pickup Chrome Ignition Coil Bracket & Chrome Coil Cover.