[awbrown]

Heater is under the dash , you can see the 2 lines for it on the firewall where the PO hooked them together... It looks like a solid truck !! I have 2 63's ... Yours also has the custom steering wheel ... the heater is the economy heater the deluxe heater would be on the firewall side ..... Dont forget to clean the heater out before using it most have rodents that have taken up residence...And if the PO hooked the hoses up it must have a leaking core , or the PO just got tired of the heat being on all the time ... if the controls get rusty that is what happens.. the deluxe heater has some advantages over econo heater...