If it is a Chevy, which I think Fleetwood uses, reach behind the dash and you will feel a TIT on the bottom of the switch. Push that HARD and pul the knob and shaft out HARD. May take a bit of working at it, but the knob and shaft should come out. You can then unscrew the face plat which is around the shaft and the switch will be free. Take it to your local auto parts store and match it up. Should be from a 73 Chevy truck. Be careful as there are two different switches. Make sure you get one with the same number of terminal connections.