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Old 12-16-2011, 10:22 PM   #1
100%Chevy
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64,65,66 GMC with factory a/c?

Anybody seen one?
I'd like some pictures of the dash controls and air vent(s).Never seen one.
I have a 65 Chevy,C-10 with air,but the dash stuff won't work on my GMC.
Thanks,Mike.
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Old 12-16-2011, 10:45 PM   #2
nbrfd007
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Re: 64,65,66 GMC with factory a/c?

Quote:
Originally Posted by 100%Chevy View Post
Anybody seen one?
I'd like some pictures of the dash controls and air vent(s).Never seen one.
I have a 65 Chevy,C-10 with air,but the dash stuff won't work on my GMC.
Thanks,Mike.
I have never seen an in dash air on a 64-66 GMC, just under dash units.
Tim
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Old 12-16-2011, 11:57 PM   #3
Joemomma1
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Re: 64,65,66 GMC with factory a/c?

There is such an animal! I pulled a almost complete setup minus the under dash vents from a FACTORY equipped truck. The 3 pull knobs mount under dash on a piece of angle iron. I'll post a link to some factory drawings when I get to my pc.
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Old 12-17-2011, 12:10 AM   #4
100%Chevy
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Re: 64,65,66 GMC with factory a/c?

A few years ago,I saw some under dash a/c vents for sale,but could not proove they were the real thing.
Obviously,GMC didn't sell very many of them!
I'd appreciate any pics or info you may have.
Thanks,Mike.
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Old 12-17-2011, 10:09 AM   #5
duallyjams
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Re: 64,65,66 GMC with factory a/c?

The GMC with the V6 were all dealer add on AC hence all vents are under the dash from what I have read and seen.
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Old 12-17-2011, 12:29 PM   #6
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Re: 64,65,66 GMC with factory a/c?

The GMC fact a/c unit used the same heater & evaporator box as Chevy, same knobs/controls although mounted underdash on a piece of angle-the upper plenum that goes to the former ashtray hole center vent on the Chevy is different, and routes to underdash vents robbed from mid/late-50s Pontiac cars.
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Old 12-18-2011, 08:08 PM   #7
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Re: 64,65,66 GMC with factory a/c?

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Originally Posted by 64fleetside View Post
The GMC fact a/c unit used the same heater & evaporator box as Chevy, same knobs/controls although mounted underdash on a piece of angle-the upper plenum that goes to the former ashtray hole center vent on the Chevy is different, and routes to underdash vents robbed from mid/late-50s Pontiac cars.
Thats what I'm reffering to as factory equipped, not the "one size fits all" knee freezer setups you would usually see. What Pontiac can I find those vents from? I've been searching but have had no luck.

Heres the link to the photos.

http://rides.webshots.com/album/2620...mqcAD?start=12
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Old 12-17-2011, 09:26 PM   #8
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Re: 64,65,66 GMC with factory a/c?

Bill's Truck Shop in Courtice Ontario Canada has a 64 GMC Suburban with a Mark IV under dash unit fresh from California that he's selling parts off of. The Mark IV was offered as a dealer installed accessory according to the Silver Book.

The 1964 GMC Accessories book has no listing for A/C.

A 1965 GMC Accessories Order Pad.




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