I hooked up the heater hoses to the heater core of the '77 camo truck. I had bypassed the heater core last summer so not as much heat would come into the cab during our August trip. I also looked into why the blower motor doesn't move much air. Apparently the fan runs on low, no matter where the blower switch is positioned. I'll look into that another day. A little heat is way better than no heat.
I also went out to my '77 K5 and discovered my minty original GM dash pad is cracked now. Bummer.
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