OER Parts offers a wide selection of Body Components for your 1964 GMC 2500 Series. OER Parts offers 1964 GMC 2500 Series Wiper Motors, 1964 GMC 2500 Series Wiper Motor Grommet, 1964 GMC 2500 Series Wiper Motor To Firewall Seal, 1964 GMC 2500 Series Wiper Motor Harness, 1964 GMC 2500 Series Wiper Motor Shroud Gasket, 1964 GMC 2500 Series Wiper Motor Cover, and 1964 GMC 2500 Series Wiper Motor Mounting Hardware.