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Old 04-13-2017, 11:39 AM   #1
Larry S
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American Autowire vs Painless

Ok guys, I'm about to pull the trigger on a harness. I'm thinking one of the two.
American autowire 510089
Or
Painless 910102060

69 C10. Im putting a 1996 vortec 5.7/4l60e Transmission in it. Staying with the efi. Having the ecm reprogrammed and engine harness reworked most likely by jims. Wanting to totally rewire everything else.

Which is best and most straightforward install. I'm no wiring expert. Need wiring for dummies.
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Old 04-13-2017, 12:16 PM   #2
kwmech
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Re: American Autowire vs Painless

I've always preferred AAW
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Old 04-13-2017, 12:34 PM   #3
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Re: American Autowire vs Painless

I've never done the AAW but have done a couple of Painless so I vote for Painless.
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Old 04-13-2017, 12:57 PM   #4
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Re: American Autowire vs Painless

I have never had an issue with AAW. I always seem to by them because their prices were better.
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Old 04-13-2017, 01:27 PM   #5
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Re: American Autowire vs Painless

I used AAW and painless. My 67 c10 has painless and my 71 blazer has AAW. They both are simple to use. I would probably prefer AAW if you want it to look stock. Painless if you are doing custom. The one issue I have about the painless is the heater control wire gets very hot, the AAW doesn't..
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Old 04-13-2017, 11:38 PM   #6
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Re: American Autowire vs Painless

Another vote for AAW. Used it in my '68 and '69. No problems whatsoever. Comes with very good wiring diagrams, good for trouble shooting later on.
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Old 04-16-2017, 03:01 PM   #7
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Re: American Autowire vs Painless

another vote for AAW... great color diagrams and real easy to follow
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Old 04-16-2017, 03:14 PM   #8
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Re: American Autowire vs Painless

The heater leads absorbs heat from the resistor could so it's a good idea to upgrade the size of them anyway AND use j1128 spec wiring too-which Im fairly certain both companies do. On the 73-up trucks there is a single 14ga lead that supplies power to the climate control and thus all blower speeds except HIGH-same thing....over time with all the heat in the wiring the weakest link is the connector behind the climate control and it melts over time. Seems GM never anticipated these trucks reaching over 100K miles in their life or they'd have designed a better wiring system. Most companies just copy GM wiring schematics-they'd be better served to improve on the shortcuts GM took-and some do but not enough imo.
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Old 04-17-2017, 09:15 AM   #9
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Re: American Autowire vs Painless

I use AAW great product and phone help.
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Old 04-17-2017, 11:32 AM   #10
Larry S
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Re: American Autowire vs Painless

Has anyone actually used the American autowire 510089 and installed vortec 5.7 l31 in there truck? I'm a little unclear how I'll tie it all together. My engine harness will be pretty much stand alone but I'll have to have some connections between the 2 harnesses to make all instrumentation and key switch work I'm sure.
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Old 05-14-2017, 08:33 PM   #11
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Re: American Autowire vs Painless

Quote:
Originally Posted by Larry S View Post
Ok guys, I'm about to pull the trigger on a harness. I'm thinking one of the two.
American autowire 510089
Or
Painless 910102060

69 C10. Im putting a 1996 vortec 5.7/4l60e Transmission in it. Staying with the efi. Having the ecm reprogrammed and engine harness reworked most likely by jims. Wanting to totally rewire everything else.

Which is best and most straightforward install. I'm no wiring expert. Need wiring for dummies.
Who is jims? What do they charge to thin out harnesses.
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Old 05-14-2017, 08:35 PM   #12
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Re: American Autowire vs Painless

http://www.jimsperformance.com
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Old 05-17-2017, 04:01 PM   #13
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Re: American Autowire vs Painless

We sell a LOT of the AAW Classic Update kits. I think they are by far the most popular wiring kit in the market. You can't go wrong!

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Old 05-18-2017, 12:45 PM   #14
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Re: American Autowire vs Painless

I have the AAW classic update. Good quality fuse panel, wire and connectors, wires label etched every foot, easy to follow installation instructions, and 18 circuit panel makes the system nimble to grow with your needs. $550-ish makes it a great investment.
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Old 05-18-2017, 12:52 PM   #15
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Re: American Autowire vs Painless

AAW 100% and the classic update harness would be the way to go. Should be no problem with setup you want to run.
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Old 06-12-2017, 07:57 PM   #16
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Re: American Autowire vs Painless

AAW is the way to go. great quality, great price, and simple installation. plus mine came with all the switches.
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