OER Parts offers a wide selection of Electrical & Wiring Components for your 1965 GMC 1000 Series. OER Parts offers 1965 GMC 1000 Series Sensors, 1965 GMC 1000 Series Coolant Temperature Sensor, 1965 GMC 1000 Series Oil Level Sensor, 1965 GMC 1000 Series 4 Pulse Speed Sensor, 1965 GMC 1000 Series AC pressure Sensor, and 1965 GMC 1000 Series Knock Sensor.