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Old 01-17-2010, 06:32 PM   #1
73step
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ac to heat only

what would i need to swap out my ac ductwork under the hood to heat only? im not using the ac and having the big box there is an eye sore to me
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Old 01-17-2010, 06:46 PM   #2
old Rusty C10
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Re: ac to heat only

you need the inner and outer boxes, the cables and the selector and its a direct bolt in.
This thread reminds me i have one that i promised to someone so if they read this please get hold of me pics to follow
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Old 01-17-2010, 07:12 PM   #3
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Re: ac to heat only

you also use different duct work and the other thing is the vents in the center of the dash pad are eliminated the air goes out the bottom or top no center
here are some pics of the old one i have in my basement from my 76
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1951 International running on a squarebody chassis


"If a man's worth is judged by the people he associates himself with, then i am the richest man in the world knowing some of the fine people of this board"
http://67-72chevytrucks.com/vboard/a...t.php?f=25&a=9 (you can review the site rules here!)


PM Me for your vehicle/parts hauling needs in the North East US or see my Facebook page Robert Olson Transport

Live each day to the fullest.. you never know when fate is going to pull the rug out from under you...
I hate cancer!!

Last edited by old Rusty C10; 01-17-2010 at 07:15 PM.
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Old 01-17-2010, 07:26 PM   #4
73step
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Re: ac to heat only

if your friend backs out let me know lol i want to clean the engine bay up. and will the defrost ducts work with the heat only ductwork

Last edited by 73step; 01-17-2010 at 07:27 PM. Reason: forgot something
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Old 01-17-2010, 08:09 PM   #5
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Re: ac to heat only

I don't remember who sells it, but there's a plate you can buy to cover up where the ac box was and convert it to heat only. IIRC the holes in the firewall are different for AC and non-AC trucks.
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Old 01-17-2010, 08:17 PM   #6
73step
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Re: ac to heat only

i was thinking about bending up some metal to do that with being on i been in hvac for years but if they make a kit for decent price im interested
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Old 01-17-2010, 08:37 PM   #7
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Re: ac to heat only

May wanna do it yourself since you know how. I think that thing was like $140 or so. It looks good though.

EDIT: I found a link to it HERE

Last edited by 78 Chevyrado; 01-17-2010 at 08:48 PM.
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Old 01-17-2010, 09:04 PM   #8
Prong
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Re: ac to heat only

Quote:
Originally Posted by 78 Chevyrado View Post
I don't remember who sells it, but there's a plate you can buy to cover up where the ac box was and convert it to heat only. IIRC the holes in the firewall are different for AC and non-AC trucks.
The heater cores and location of the outlets for them into the firewall is different as well.
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Old 01-17-2010, 09:21 PM   #9
73step
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Re: ac to heat only

yeah with 140 plus shipping i can bend alot of aluminum to make something work lol
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