How to replace heater control box and cables 1967-72 Chevy GMC C20 Suburban truck

[@stevensimon2633]

Great video with attention to detail! Recently picked up a '72 K10 so I'll be slowly doing all of these "mods" to it! Heavy reliance on KZbin! Lol...

[@jerrygomoll8130]

Can you show me the power source, I bought a 72 without a heater and starting from scratch. I bought a used heat box, new heater core, a new blower motor, gasket set, cables, wire harness that goes between the controller and the blower motor but I don’t know where the power source comes into play.

[@skillsmydadtaughtme880]

@@jerrygomoll8130 sorry I cannot be much help here. The power supply runs from the fuse box to the control slides, then the switch from the control slide box go to a harness that is hidden behind the heater box. I’d recommend finding someone local that will let you look at theirs to find what you need. Good luck man!

[@editrento1]

When you turn the middle slide switch, that turns the heat on. There’s a brown wire coming from your fuse box. That’s the wire for the heat