And this....
Re: how to remove heater core on 67 Galaxie

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Now i know what is nessessary to R&R the heater core in a 1967 Galaxie with factory AC. Remove the hood, remove the passenger side hood hinge, remove the passenger side front fender. Remove the heater hoses. Now you can get to all the 3/8 screws that hold the housing on and then just lift straight up and out. The core is mounted inside the housing with several more screws. In the meantime, im going to bypass the thing and maybe ill get lucky and have a heart attack before i have to change it out. I dont drive it much in the winter anyway.