A/C systems - The 1947 - Present Chevrolet & GMC Truck Message Board Network

ggtsvnv · 02-23-2004, 02:47 AM

Hi I have a question for someone about A/C systems specific to 67 to 72 trucks. My 71 had A/C from the factory but it was long gone before I got the truck, but I would like to put it back in. My question is there any other year of Chevy/GMC truck A/C system the will bolt onto and hook up to my truck? I have seen a lot of 73 to 87's with A/C and was hoping if I took everthing from one of those that it might be an easy switch instead of looking for a set up from a 67 to 72 which seems to be hard to find. Or would it just be eaiser to use a aftermarket system such as vintage air? Cost is some what of an issue for me so I would like to factor that in. Thanks

JimKshortstep4x4 · 02-23-2004, 09:21 AM

You will want to get a 67-72 in order for it to fit . I am sure there is a way to modify the later models with some work, though.

Aftermarket is a good alternative.

Check with someone like GMC Paul for prices of new kits.

www.gmcpauls.com

Jim

Mike Culpepper · 02-23-2004, 02:51 PM

I vote aftermarket, I LOVE my VIntage air, blows COLD and an easy install.
My 2 cents,
Mike

*rage'nrat638* · 02-23-2004, 03:06 PM

YOU GOT THE BOX ON THE FIREWALL AND ALL RIGHT...????

i had to put a compressor condensor and hoses etc on mine...
i used a sanden compressor and a allan grove bracket

Don Smith · 02-23-2004, 06:40 PM

67-72 cars have same set up as truck. Probably easier to find and get A/C system from one of them rather than from truck.

mrein3 · 02-23-2004, 11:31 PM

I'd try the parts board for 67-72 truck AC parts before I gave up and went aftermarket. ESPECIALLY since you have a truck that had factory AC.

The A-bodies of that vintage are definately NOT the same. That is not to say some of the parts won't work.

I'm converting my non-AC truck to AC. I ran into winter and stopped but when the temp starts to rise again I'll be close to bolting it all together.

The POA valve you have on your factory AC system is adjustable. I would start with adjusting that for R134a the new "freon". It isn't freon but it is the new refridgerant the industry has been using since about 1994.

Any A6 compressor will work. Just make sure when you turn the clutch assembly that it turns and you can hear or feel it compressing out the back.

The hoses are available from suppliers on this board.

Once you get all the stuff, flush it out, bolt it all together, and bring it to a shop to have a vacuum pulled and finally the system filled with refridgerant.

I'll bet for $100 you can get a used compressor and brackets. $100 or so for NEW hoses. $5 worth of laquer thinner to flush out all your stuff. Under $30 for ALL the o-rings. $30 for a new receiver/dryer (never use a used one). Then what ever a shop charges for a vacuum and fill.

That would be WAY cheaper than what the aftermarket systems will run. The only way I'll get to the $900 or so the aftermarket system will set you back is if I buy another truck with it.

ggtsvnv · 02-23-2004, 11:56 PM

Thanks to everyone for the imput, that is what makes a site like this a great one. Thanks again!

djracer · 02-24-2004, 01:17 AM

I am fixing to remove my stock a/c setup wish you were closer!

02-23-2004, 02:47 AM	#1
ggtsvnv Registered User Join Date: Apr 2003 Location: Cold Springs NV Posts: 85	A/C systems Hi I have a question for someone about A/C systems specific to 67 to 72 trucks. My 71 had A/C from the factory but it was long gone before I got the truck, but I would like to put it back in. My question is there any other year of Chevy/GMC truck A/C system the will bolt onto and hook up to my truck? I have seen a lot of 73 to 87's with A/C and was hoping if I took everthing from one of those that it might be an easy switch instead of looking for a set up from a 67 to 72 which seems to be hard to find. Or would it just be eaiser to use a aftermarket system such as vintage air? Cost is some what of an issue for me so I would like to factor that in. Thanks

02-23-2004, 02:51 PM	#3
Mike Culpepper Red Join Date: Feb 2003 Location: Llano... Texas Hill Country Posts: 448	I vote aftermarket, I LOVE my VIntage air, blows COLD and an easy install. My 2 cents, Mike __________________ '72 Cheyenne LWB 350/350 "The sun don't shine on the same dog's ass all the time." - Catfish Hunter (commenting on why he was not able to pitch another perfect game).

02-23-2004, 03:06 PM	#4
rage'nrat638 Account Suspended Join Date: Mar 2003 Location: THE FALL GUY CHICAGO IL Posts: 5,883	YOU GOT THE BOX ON THE FIREWALL AND ALL RIGHT...???? i had to put a compressor condensor and hoses etc on mine... i used a sanden compressor and a allan grove bracket Last edited by rage'nrat638; 07-12-2007 at 07:07 AM.

02-23-2004, 06:40 PM	#5
Don Smith Registered User Join Date: Jul 2000 Location: Hampton, Ga, USA Posts: 217	67-72 cars have same set up as truck. Probably easier to find and get A/C system from one of them rather than from truck. __________________ 68 Short Stepside, 350, quadrajet, 700r4, 3:73 posi, power front discs, HEI, Factory Air, Tilt, Tach, accelerator cable instead of rod, sway bar. 96 Impala SS 97 Monte Carlo

02-23-2004, 11:31 PM	#6
mrein3 Registered User Join Date: Feb 2000 Location: Center City, MN, USA Posts: 3,253	I'd try the parts board for 67-72 truck AC parts before I gave up and went aftermarket. ESPECIALLY since you have a truck that had factory AC. The A-bodies of that vintage are definately NOT the same. That is not to say some of the parts won't work. I'm converting my non-AC truck to AC. I ran into winter and stopped but when the temp starts to rise again I'll be close to bolting it all together. The POA valve you have on your factory AC system is adjustable. I would start with adjusting that for R134a the new "freon". It isn't freon but it is the new refridgerant the industry has been using since about 1994. Any A6 compressor will work. Just make sure when you turn the clutch assembly that it turns and you can hear or feel it compressing out the back. The hoses are available from suppliers on this board. Once you get all the stuff, flush it out, bolt it all together, and bring it to a shop to have a vacuum pulled and finally the system filled with refridgerant. I'll bet for $100 you can get a used compressor and brackets. $100 or so for NEW hoses. $5 worth of laquer thinner to flush out all your stuff. Under $30 for ALL the o-rings. $30 for a new receiver/dryer (never use a used one). Then what ever a shop charges for a vacuum and fill. That would be WAY cheaper than what the aftermarket systems will run. The only way I'll get to the $900 or so the aftermarket system will set you back is if I buy another truck with it. __________________ '70 cab, '71 chassis, 383, TH350, NP205. '71 Malibu convertible '72 Malibu hard top Center City, MN

02-23-2004, 09:21 AM	#2
JimKshortstep4x4 Senior Member Join Date: Jul 2001 Location: Muskegon,MI,USA Posts: 6,026	You will want to get a 67-72 in order for it to fit . I am sure there is a way to modify the later models with some work, though. Aftermarket is a good alternative. Check with someone like GMC Paul for prices of new kits. www.gmcpauls.com Jim

02-23-2004, 11:56 PM	#7
ggtsvnv Registered User Join Date: Apr 2003 Location: Cold Springs NV Posts: 85	Thanks to everyone for the imput, that is what makes a site like this a great one. Thanks again!

02-24-2004, 01:17 AM	#8
djracer Registered User Join Date: Feb 2001 Location: Wetumpka, Al, U.S. Posts: 8,891	I am fixing to remove my stock a/c setup wish you were closer! __________________ Kevin Special Thanks to All who have helped on the TRUCK! My Pass Time Show http://s129.photobucket.com/albums/p...Chapter1-0.mp4 So Far my best Times are: Motor only: 6.44 1/8 @ 104.13 10.39 1/4 @ 125.83 Nitrous Times: 5.785 1/8 @ 118.65 with a 1.336 60ft 9.168 1/4 @ 142.58 with a 250 shot dead out of the hole!

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