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02-06-2014, 02:29 PM
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#1 |
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Registered User
 Join Date: Jun 2008
Location: Greenville, South Carolina
Posts: 150
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Please help! 72 A/C harness questions
Hey, I'm in need of some quick and correct answers to order the right A/C harness for my truck. I have searched the electrical section and have too many other years coming up.
Facts: 72 A/C, TH400 automatic, 350 engine Questions: 1. Did all '72 trucks come with the "anti-diesel" relay? Is this the vaccum thing next to the choke coil on the intake? It's about the size of a D cell battery with 3 vaccum ports and male plug for wiring. My other trucks have them, but, missing on this truck. However, a bunch of stuff is missing, hacked, etc. 2. There are several different transmission controlled "anti-knock" harnesses shown on AAW site, how do I know if I need one of these too? I've owned over 10 of these truck over the years and have NEVER seen or heard of this. Is this a "California smog" option? 3. Any preference of wire harness companies? American Autowire, M&H, or lectriclimited? I've checked out all three sites, same pricing, same part numbers, but, not quite the same descriptions for the actual harnesses. Are they all the same company? Price fixing? Should I call my congressman? Any forum vendor reccomendations? Thanks in advance!!! Brian
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72junky Don't worry my wife said it's ok. '72 K10 custom/10 350/4spd,ps,pb,ac,tilt,tach,3:73 posi,buddy buckets - driver '72 Cheyenne/10 swb 355/th350,factory black, loaded and lowered - toy '72 Cheyenne/10 lwb, 350/th350,ps,pb,ac,tilt - current project build '72 K5 Blazer CST 350/th350,ps,pb,ac,tilt,tach,3:73 posi - project rust bucket -Unfortunately Sold plus 4 others too ashamed to post Last edited by 72junky; 02-07-2014 at 09:18 AM. Reason: better description |
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02-07-2014, 09:19 AM
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#2 |
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Registered User
Join Date: Jun 2008
Location: Greenville, South Carolina
Posts: 150
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Re: 72 A/C harness questions
ttt Can anyone give me some insight or contacts? Please.
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72junky Don't worry my wife said it's ok. '72 K10 custom/10 350/4spd,ps,pb,ac,tilt,tach,3:73 posi,buddy buckets - driver '72 Cheyenne/10 swb 355/th350,factory black, loaded and lowered - toy '72 Cheyenne/10 lwb, 350/th350,ps,pb,ac,tilt - current project build '72 K5 Blazer CST 350/th350,ps,pb,ac,tilt,tach,3:73 posi - project rust bucket -Unfortunately Sold plus 4 others too ashamed to post |
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02-07-2014, 09:37 AM
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#3 |
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Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,945
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Re: 72 A/C harness questions
From what I remember if it had AC it had them. If it was a dealer add on then no it wouldn't have it either. Yes the d cell you desribed sounds like it and it should have vacum line ran to it.
 
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1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
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02-07-2014, 11:30 AM
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#4 |
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Registered User
Join Date: Jun 2008
Location: Greenville, South Carolina
Posts: 150
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Re: 72 A/C harness questions
Thanks Andy! See you tomorrow!
Anyone out there have any reccomendations on wire harness manufacturers? Thanks, 72junky
__________________
72junky Don't worry my wife said it's ok. '72 K10 custom/10 350/4spd,ps,pb,ac,tilt,tach,3:73 posi,buddy buckets - driver '72 Cheyenne/10 swb 355/th350,factory black, loaded and lowered - toy '72 Cheyenne/10 lwb, 350/th350,ps,pb,ac,tilt - current project build '72 K5 Blazer CST 350/th350,ps,pb,ac,tilt,tach,3:73 posi - project rust bucket -Unfortunately Sold plus 4 others too ashamed to post |
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02-08-2014, 01:02 PM
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#5 |
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Registered User
Join Date: Jun 2008
Location: Greenville, South Carolina
Posts: 150
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Re: 72 A/C harness questions
ttt
Please help, I really could use some advise and input guys. I've been around these trucks for 40 years and trying to keep this one as original as possible. They are only original once! Thanks!!!
__________________
72junky Don't worry my wife said it's ok. '72 K10 custom/10 350/4spd,ps,pb,ac,tilt,tach,3:73 posi,buddy buckets - driver '72 Cheyenne/10 swb 355/th350,factory black, loaded and lowered - toy '72 Cheyenne/10 lwb, 350/th350,ps,pb,ac,tilt - current project build '72 K5 Blazer CST 350/th350,ps,pb,ac,tilt,tach,3:73 posi - project rust bucket -Unfortunately Sold plus 4 others too ashamed to post |
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