New. Original GM Smoke(silver) color knob with clear center. Brand: GM Surface Finish: Chrome Smoke(silver) color knob with clear center Manufacturer Part Number: 20037597 Country/Region of Manufacture: Canada Other Part Number: 75A3 You are viewing a listing for a NOS OEM GM Interior DOOR WINDOW CRANK 1967-1975 CAMARO CORVETTE CHEVELLE NOVA New old stock. Original GM Smoke(silver) color knob w...