1989 Ford f150 windshield wiper knob Source Source Source Source Source Source Source Source Source Source Read Also: 1989 Ford bronco windshield wiper knob 1991 Ford f150 windshield wiper knob 1990 Ford f150 windshield wiper knob Ford windshield wiper knob 1990 Ford winshield wiper knob 1989 Ford f150 windshield wiper motor