Quote:
Originally Posted by Born Lucky
The heater core and motor are secured on the fire wall and the rest of the unit is in the cab.
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I was having the same problem that you were. I changed the heater core out on my 64. It has the exact same style that you have. Once I changed it out, it would roast me out of the truck.

The heater core is inexpensive. You can get one at advance, napa, autozone... It is a 30 minute fix. Just open the top of the heater core box in the engine bay, and you will easily be able to see how to take it out. I would also, once I have the heater core out, clean out any debris in the box. I had a bunch of leaves and dirt in mine. This resticted the air flow.