OER Parts offers a wide selection of Electrical & Wiring Components for your 1964 GMC 1000 Series. OER Parts offers 1964 GMC 1000 Series Sensors, 1964 GMC 1000 Series Coolant Temperature Sensor, 1964 GMC 1000 Series Oil Level Sensor, 1964 GMC 1000 Series 4 Pulse Speed Sensor, 1964 GMC 1000 Series AC pressure Sensor, and 1964 GMC 1000 Series Knock Sensor.