Replacing a standard (Heat/Defroster with no vents) unit with an A/C-Heater-Defroster with vents. I'm not hooking up the A/C. I'm really just looking to run vents up to my dash. Has anyone here made this kind of swap, or have any helpful insights before I start tearing things out?
A/C-Heater Box Swap
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if it was a standard heat/defroster, would't it have defroster vents on the dash? in any case, depending on your expertise in auto electric you would have to get a new wiring harness for the dash, unless you can wire it yourself. you would also have to get a new dash switch for the a/c and heater combination. as far as insight, the best i can say is drain all the antifreeze out of your heater core before starting, because cleaning that up is a pain.
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If you're looking to install the AC vents in the dash, it's probably the easiest to just replace the dash with an AC dash. You might need to pull the dash to change the box anyways. Don't forget, the windshield needs to be removed to pull the dash.
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