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Old 12-21-2005, 03:53 PM   #1
olblue81
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Adding A/C

Wanting feedback from people who've added A/C to their truck. My 81 Sierra Classic came from the factory with cruise as the only option. I added a tilt column years ago, but now I want cold air. I was planning on scrounging brackets, ducts, vents, controls and everything from a wreck and buying parts store condenser and compressor. That way everything looked like the General did it.
But now I'm wondering if an aftermarket system wouldn't be better so there is no doghouse under the hood for the evaporator. Is there an aftermarket kit that uses the factory dash controls? That is one thing I won't deviate from. It's got to use the factory dash controls.
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3.07 open diff- I need a 3.73 posi!

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Old 12-21-2005, 03:57 PM   #2
yank
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Re: Adding A/C

Look at vintage air. They have a number of kits avaliable.
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Old 12-21-2005, 04:09 PM   #3
beaterC10
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Re: Adding A/C

Aftermarket is prolly the easiest to retrofit A/C. The firewall openings are different between a factory A/C cab and a non A/C cab.
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Old 12-21-2005, 05:18 PM   #4
Slonaker
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Re: Adding A/C

Quote:
Originally Posted by beaterC10
Aftermarket is prolly the easiest to retrofit A/C. The firewall openings are different between a factory A/C cab and a non A/C cab.
I have not done it, but several of the folks here on the board have reported that they successfully cut their firewall to accept the factory A/C setup.

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Old 12-21-2005, 06:26 PM   #5
olblue81
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Re: Adding A/C

Quote:
Originally Posted by Slonaker
I have not done it, but several of the folks here on the board have reported that they successfully cut their firewall to accept the factory A/C setup.

Slonaker
I know about the opening - I was told to make a cardboard tracing of the opening in the donor truck and to use it to make the opening bigger in the other. I am under the impression that the opening just has to be made bigger. I don't know, maybe some of the original has to be closed off?

I was just at the Vintage Air site and it shows the system using the original controls. I'll check that out more.
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1981 GMC Sierra Classic LWB
355- original 2 bolt block, 10.2:1, vortec heads, Comp XE268 cam, built by self in 1992
700R4-2000 stall with lockup, shift kit, Corvette servo
3.07 open diff- I need a 3.73 posi!

2nd owner since 1986 - 388,000 km and counting. 100k by the first owner and the rest by me.
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Old 12-22-2005, 03:20 AM   #6
apstguy
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Re: Adding A/C

I'll tell you, Vintage air will probably be the most cost effective way to add a/c. Just to get my a/c to r134a was $300+ (including compressor) and that is if you have all the equiptment (vacuum pump, gauges, & lines).
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Old 12-22-2005, 11:14 AM   #7
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Re: Adding A/C

A friend of mine used to work at Vintage Air. he says the kit is of good quality.

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Old 12-22-2005, 11:53 AM   #8
PHOENIX
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Re: Adding A/C

When I got my truck it had an aftermarket kit in it.
It worked well, but I had problems and didn't like the design.
I was from some company in Texas.
I ripped it all out and have no A/C in Phoenix, its hot.
I vote factory a/c!
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