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10-08-2010, 07:16 AM
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#1 |
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Registered User
Join Date: Aug 2009
Location: Oregon
Posts: 611
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Did my truck have factory AC or not?
I recently got a 1973 K20 as a gift and and I heard second hand from the last owner that it had factory AC, although the compressor is missing as the engine has been replaced. I believed this because, well, I have AC controls in the dash.
 There are also some heavy hoses under the dash that are cut off, for AC or...?On the other hand I know the firewall is different in factory AC trucks and I just noticed tonight that my '73 looks exactly the same as my non-AC '79. I also don't have the vents in the dash, but the pad has been replaced so I don't know if there was? So now I'm wondering if the '73 actually had factory AC? Can I tell by looking at the firewall? I want AC, but only if my truck originally had it.  I'll try to take some pics in the morning...
Last edited by Number21; 10-08-2010 at 07:18 AM. |
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10-08-2010, 09:13 AM
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#2 |
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Happy to be here
 
Join Date: Mar 2000
Location: Cypress, TX
Posts: 39,023
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Re: Did my truck have factory AC or not?
Non a/c trucks will have a small heater box on the firewall. Factory a/c box will be much larger.
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Follow me on Facebook and Instagram @N2trux.com Articles- "Jake" the 84 to 74 crewcab "Elwood" the77_Remix 85 GMC Sierra "Scarlett" "Refining Sierra" |
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10-08-2010, 09:24 AM
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#3 |
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Registered User
Join Date: Sep 2010
Location: Gainesville, MO
Posts: 251
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Re: Did my truck have factory AC or not?
That's one way to tell, but do you have the spid possibly or the original sales papers? That would be a great way to tell.
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10-09-2010, 01:57 AM
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#4 |
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Registered User
Join Date: Aug 2009
Location: Oregon
Posts: 611
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Re: Did my truck have factory AC or not?
Unfortunately I don't have any of the original papers. I want to order one of those information packets from GM.
I take it this isn't a factory '73 AC firewall?  Although I have this inside...  And I have no idea what the hell this is for... 
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10-09-2010, 02:06 AM
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#5 |
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Registered User
Join Date: Sep 2010
Location: state of denial
Posts: 271
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Re: Did my truck have factory AC or not?
that's aftermarket!
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Jay 2001 Pontiac Aztek GT |
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10-09-2010, 02:09 AM
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#6 |
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6.0 powered square
Join Date: Feb 2008
Location: Mesquite texas
Posts: 3,459
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Re: Did my truck have factory AC or not?
You had dealer added or after market air. The firewall is the non a/c version
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Aaron 1980 c-10 short bed lowered, cammed 6.0, 4l80e 3600 stall, smp tune, wilwoods, and flames best time so far best et 7.86 @87 on motor 7.57 90 on a 75 shot Build http://67-72chevytrucks.com/vboard/s...d.php?t=283326 |
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10-09-2010, 09:44 AM
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#7 |
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78K & 79C Jimmys
Join Date: Nov 2009
Location: Ottawa Ont CANADA
Posts: 7,901
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Re: Did my truck have factory AC or not?
don't think i've seen that before,
but up here by the time i would get that put in it would be cold again lol
__________________
John 1978 GMCJimmy4X4-350/203 1979 GMCJimmy4X2-305/350 |
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