OER Parts offers a wide selection of Performance Ignition Components for your 1968 GMC Truck. OER Parts offers 1968 GMC Truck Coils, 1968 GMC Truck Control Modules, 1968 GMC Truck Distributor Components, 1968 GMC Truck Distributors, 1968 GMC Truck Electronic Ignition Conversion, 1968 GMC Truck Ignition Control 1968 GMC Truck Plugs & Wires, 1968 GMC Truck Stands & Hardware and 1968 GMC Truck Tune Up Parts.