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73-87 Chevy _ GMC Trucks => Electrical => Topic started by: agilbert81 on March 05, 2013, 02:27:23 pm

Title: Wiring Harness
Post by: agilbert81 on March 05, 2013, 02:27:23 pm

Hi there,

Does anyone one know where a good place is to get a wiring harness for my 74 Chevy K10 with 350 small block. The wiring harness in it now had been spliced and hacked up pretty good. It also seems to have a battery isolater. Was this standard with the 74? If not, will it be hard to take out. I've never attempted to replace a wiring harness so I'm a little nervous

Title: Re: Wiring Harness
Post by: bd on March 05, 2013, 06:16:36 pm

Check out the store here and email Captkaos, describing what you want.  He sells quality wiring harnesses.

Title: Re: Wiring Harness
Post by: bake74 on March 09, 2013, 09:39:04 am

     Preparedness is your best friend when it comes to redoing a wiring harness.  The more you prepare, the easier it will be.

Title: Re: Wiring Harness
Post by: Captkaos on March 15, 2013, 05:45:38 pm

I sell a complete American Auto Wire upgrade kit for the 1973-81 trucks if you are interested.  Shoot me an email.

Title: Re: Wiring Harness
Post by: agilbert81 on March 24, 2013, 06:00:59 pm

Thank you guys for the help. So I got my hands on a 78. Chevy truck 2wd that I am going to use for parts. Now mine is a 74 K-10. Can I swap out the harnesses from the firewall forward on them?

Title: Re: Wiring Harness
Post by: pedigo78 on March 24, 2013, 08:05:31 pm

@Capt what is the difference in the harness after 81? I have a 85 and I am looking at painless harness. want to make sure i dont order the wrong one

Title: Re: Wiring Harness
Post by: Captkaos on March 25, 2013, 01:44:37 pm

ESC, Feedback Carb, etc...  All this started in 1981.  Any universal harness will be for all years so all that stuff will be gone..  Even the 1973-1981 setup can be used on up to 1987, but the EFI stuff won't be there...  And is comes with all the connectors.

Title: Re: Wiring Harness
Post by: Captkaos on March 25, 2013, 01:45:44 pm

You should be able to swap, but the pinouts on the bulkhead need to be verified...