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first you will have to remove your heater hoses going to your motor to the firewall take them off at the firewall, then there is a big box on your firewall, there is a bunch of screws holding it on remove them you heater core will be inside it.

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โˆ™ 2015-07-15 19:58:15
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Q: How do you change a heater core in a 1978 Chevy c-10 pick up truck?
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