I never had the switch for the hi/low fan when I got this truck from a junkyard.(if they even had one. I don't know what an original hi/med/lo switch looks like). I did end up getting a switch from parts store that looks like it could have been original, it is maroon in color and has off/hi/med/lo settings and mounts under the dash.
The truck had the deluxe heater and had the Control valve with it. I am rebuilding the control valve. Have found a guy out in Calif. that sells the rubber diaphramm that I need for the deluxe heater control valve.
http://www.heatercontrolvalve.com/index.html
