Bill,
The heater I have for the truck is a recirculating unit (RPO 987759). It is not the deluxe heater. After looking at your '57 reference book, I pulled my '59 reference book down off the shelf and it also shows a dash knob that looks like the other knobs. Thanks for sending that link. I didn't even think about looking for the switch in the accessories reference manual. Now I know what I need. Thanks again!
Bruce,
If I can't locate one locally, I will be in touch. I have knobs, now I just need to find a switch that will work. I will let you know how it turns out. Thanks!
