What wiring harness should I use? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

White70C20 · 01-31-2014, 05:53 PM

Hey all,
I'm starting to work on my grandfather's '70 C20 again now that I'm back at school. While the engine is out and the interior is stripped, I thought now would be a good time to work on the wiring. When I parked the truck back in November I checked to see if any of the lights worked. Nothing worked. I'm thinking either there are tons of bad grounds (unlikely), or the mice had lots of fun tearing it up over the course of 20 years.

Anyway, I was wondering what the rest of you have used for wiring harnesses? I've found replacement wiring kits from LMC but they're terribly expensive. This isn't going to be a show truck (it's full of dents), I'm just wanting a reliable daily driver. I was wondering if there were other, cheaper alternatives.

Thanks!

powell72 · 01-31-2014, 07:24 PM

I just rewired my truck and used all American Autowire harnesses. They were excellent to work with and fit great. I bought them from Classic Parts (Chevy Duty), the under dash harness is the most expensive at $350 if I recall correctly.
If you're good with electrics and have the time you can always get a universal harness from a number of vendors.

*The only thing I use LMC for is their exploded diagrams in the catalogs.

White70C20 · 02-01-2014, 12:10 AM

Ok. Cool.

I got a catalog from them a while back but I hadn't looked for wiring harnesses. I'll have to check that out and see how they work. Thanks!

**Tom Vogel** · 02-01-2014, 10:42 AM

You will be VERY happy with that kit, just follow the excellent instructions.

kxmotox247 · 02-01-2014, 11:27 AM

Has anyone here used a universal harness for a street rod rather than a 67-72 specific one? I've got a painless harness for the truck I'm working on now and was thinking about using a universal to make a more clean installation.

88fordf150 · 02-01-2014, 02:17 PM

I'm also interested in using a universal harness.

Sean1985 · 02-01-2014, 02:56 PM

I know a couple guys that build super custom cars and trucks and they told me to stay away from painless. Out of all the harnesses they have used that was the hardest one to get through. They were universal harnesses. But that's just them. Although I took their advice.

colgad · 02-01-2014, 04:22 PM

I used Kwik-wire for my 67 and I was great. Good quality and the instructions we good also. I liked the kill switch on top of the fuse panel.
http://www.kwikwire.com/wire-harness/

01-31-2014, 05:53 PM	#1
White70C20 Registered User Join Date: Oct 2012 Location: Kansas and Iowa Posts: 349	What wiring harness should I use? Hey all, I'm starting to work on my grandfather's '70 C20 again now that I'm back at school. While the engine is out and the interior is stripped, I thought now would be a good time to work on the wiring. When I parked the truck back in November I checked to see if any of the lights worked. Nothing worked. I'm thinking either there are tons of bad grounds (unlikely), or the mice had lots of fun tearing it up over the course of 20 years. Anyway, I was wondering what the rest of you have used for wiring harnesses? I've found replacement wiring kits from LMC but they're terribly expensive. This isn't going to be a show truck (it's full of dents), I'm just wanting a reliable daily driver. I was wondering if there were other, cheaper alternatives. Thanks! __________________ White70C20 1970 Blue C20 - 250, 4 speed 1985 Ford Thunderbird 2005 Pontiac G6

01-31-2014, 07:24 PM	#2
powell72 Senior Member Join Date: Jan 2005 Location: Loveland Co. Posts: 3,098	Re: What wiring harness should I use? I just rewired my truck and used all American Autowire harnesses. They were excellent to work with and fit great. I bought them from Classic Parts (Chevy Duty), the under dash harness is the most expensive at $350 if I recall correctly. If you're good with electrics and have the time you can always get a universal harness from a number of vendors. *The only thing I use LMC for is their exploded diagrams in the catalogs. __________________ Chris 74 Custom Deluxe SWB 350/350/3.73’s 99 2wd Silverado RCSB 5.3/4L60/3.90’s http://www.classictrucks.com/feature...short_bed.html

02-01-2014, 12:10 AM	#3
White70C20 Registered User Join Date: Oct 2012 Location: Kansas and Iowa Posts: 349	Re: What wiring harness should I use? Ok. Cool. I got a catalog from them a while back but I hadn't looked for wiring harnesses. I'll have to check that out and see how they work. Thanks! __________________ White70C20 1970 Blue C20 - 250, 4 speed 1985 Ford Thunderbird 2005 Pontiac G6

02-01-2014, 10:42 AM	#4
Tom Vogel 2WD Jimmy Join Date: Mar 2005 Location: Davis County, Utah Posts: 2,565	Re: What wiring harness should I use? You will be VERY happy with that kit, just follow the excellent instructions.

02-01-2014, 11:27 AM	#5
kxmotox247 Senior Member Join Date: Jul 2002 Location: Champaign, IL Posts: 1,397	Re: What wiring harness should I use? Has anyone here used a universal harness for a street rod rather than a 67-72 specific one? I've got a painless harness for the truck I'm working on now and was thinking about using a universal to make a more clean installation.

02-01-2014, 02:17 PM	#6
88fordf150 Registered User Join Date: Nov 2009 Location: Michigan Posts: 474	Re: What wiring harness should I use? I'm also interested in using a universal harness. __________________ Brad handshoe

02-01-2014, 02:56 PM	#7
Sean1985 Registered User Join Date: Dec 2013 Location: Carlsbad Posts: 133	Re: What wiring harness should I use? I know a couple guys that build super custom cars and trucks and they told me to stay away from painless. Out of all the harnesses they have used that was the hardest one to get through. They were universal harnesses. But that's just them. Although I took their advice.

02-01-2014, 04:22 PM	#8
colgad Registered User Join Date: Jun 2006 Location: Lutz, Florida Posts: 838	Re: What wiring harness should I use? I used Kwik-wire for my 67 and I was great. Good quality and the instructions we good also. I liked the kill switch on top of the fuse panel. http://www.kwikwire.com/wire-harness/ __________________ 1967 Red, C10 Short Bed 6.0L T5 5 speed 1967 Orange and Black C50 6.2 Detroit Diesel NV4500, 2 Ton Pickup 1972 White, Chevy Blazer 2WD 67 Dog house 5.3 4L65 2016 Power Tour LH 1955 Red-Cream, Chevrolet Nomad, restoration on hold 2004 Black, Corvette Z06 LS6 convertible (Rock solid Fun) 2011/2018 Power Tour



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