K 1500 Truck 4WD V8-350 5.7L (1986)
1. Core.
2. Core retaining clamps.
3. Heater distributor.
4. Wiring harness.
5. Defrost duct to heater distributor.
6. Floor outlet.
7. Air defroster and temperature cables.
8. Instrument panel compartment.
9. Heater hoses to the core tubes.
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Unplug the hoses.
10. Replace coolant.
11. Battery ground wire.
