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View Poll Results: Which direction to take? | |||
Replace damaged harnesses with good, used GM ones | 7 | 58.33% | |
Get an aftermarket kit to rewire the entire truck | 5 | 41.67% | |
Voters: 12. You may not vote on this poll |
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05-24-2022, 11:08 PM | #1 |
Senior Member
Join Date: Jan 2018
Location: Hickory Flat, GA
Posts: 4,475
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Chewed up wiring harness, what would you do?
I have a dilemma, and would like to get some input on the situation.
The 81 I'm getting has a ton of wires chewed through under the hood, and I need to make it right. Everything in the cab seems fine as I didn't see any rats nest material in the cab. I don't know what the wires look like under the bed and such, but I wouldn't be surprised if some have been chewed. Goals for the truck is to keep it mostly stock. Maybe I'll swap to a 4 barrel and throw a cam in the 305. Definitely thinking about lowering it some. I don't have plans or a desire right now to LS swap. If I do decide to engine swap, it'll most likely stay sbc powered because I like them So what would y'all do?
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Christian Carpenter 1963 C10 - Frankentruck 283, Muncie 3 speed with overdrive Overdrive wiring here1963-ish truck bed trailer - Half-Wit 1981 C10 - Penny 305, th350 --> Soon to be 350, Saginaw 4 speed 1995 Dodge Dakota Sport "I'll put it simple: if you're going hard enough left, you'll find yourself turning right." - Doc Hudson Last edited by cwcarpenter98; 05-24-2022 at 11:16 PM. |
05-25-2022, 12:00 AM | #2 |
Post Whore
Join Date: May 2015
Location: Alabama
Posts: 14,657
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Re: Chewed up wiring harness, what would you do?
Holy cow...now that theres a rats nest...or squirrels...or whatever
as old as the truck is , I'd be tempted to just replace all the wiring, inside and out..theres no telling what all kinda po stuff went on inside the cab as well.. Then itll be all new and no worries..
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Mongo...aka Greg RIP Dad RIP Jesse 1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598 Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334 Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563 2023 Chevy Z71..daily driver |
05-25-2022, 02:32 PM | #3 | |
Senior Member
Join Date: Jan 2018
Location: Hickory Flat, GA
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Re: Chewed up wiring harness, what would you do?
Quote:
I guess I should have mentioned that this truck has had zero modifications that I have been able to find from the previous owners. There's no aftermarket accessories added to the interior. It's also a possibility that the truck only has 57k miles based on the previous owner's story. It's also possible that it's been 157k, but either way, was definitely kept in good condition until it got parked for 20 years in a field. I was very surprised that the engine would still crank with the "key". Can't find the key currently, but the ignition cylinder was still able to turn and it turned the engine over Also, the battery warning light came on and the door buzzers still worked. I got 12 volts to the distributor, but as seen in the second picture, the distributor wires were chewed through, so no spark out to the chewed up spark plug wires.
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Christian Carpenter 1963 C10 - Frankentruck 283, Muncie 3 speed with overdrive Overdrive wiring here1963-ish truck bed trailer - Half-Wit 1981 C10 - Penny 305, th350 --> Soon to be 350, Saginaw 4 speed 1995 Dodge Dakota Sport "I'll put it simple: if you're going hard enough left, you'll find yourself turning right." - Doc Hudson |
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05-25-2022, 03:25 PM | #4 |
Registered User
Join Date: Jun 2012
Location: Schoolcraft, Michigan
Posts: 928
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Re: Chewed up wiring harness, what would you do?
If the wire harness under the dash is good there is no reason to replace it. An aftermarket wiring harness like american auto wire is going to cost close to $1000. I would either build your own or buy an engine bay harness.
If the truck is truly untouched building your own would be fairly simple. I just built one for my K20 and probably have $100 in it. I got good automotive GXL wire from wirebarn.com and delphi terminals from amazon. You will have to buy the delphi crimpers for the terminals.
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1972 GMC Jimmy 4x4 LS Swap 1985 Chevy K20 1994 GMC Yukon 2021 GMC 2500HD Duramax AT4 My "It's a Jimmy Thing" Build http://67-72chevytrucks.com/vboard/s...d.php?t=583528 Budget Build 1985 K20 http://67-72chevytrucks.com/vboard/s...d.php?t=801565 |
05-25-2022, 03:30 PM | #5 |
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Join Date: Jun 2012
Location: Schoolcraft, Michigan
Posts: 928
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Re: Chewed up wiring harness, what would you do?
Also, i didn't vote because I wouldn't buy a new harness and finding a good used engine harness will be next to impossible!
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1972 GMC Jimmy 4x4 LS Swap 1985 Chevy K20 1994 GMC Yukon 2021 GMC 2500HD Duramax AT4 My "It's a Jimmy Thing" Build http://67-72chevytrucks.com/vboard/s...d.php?t=583528 Budget Build 1985 K20 http://67-72chevytrucks.com/vboard/s...d.php?t=801565 |
05-25-2022, 04:45 PM | #6 |
Registered User
Join Date: Aug 2012
Location: Oklahoma City, OK
Posts: 2,559
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Re: Chewed up wiring harness, what would you do?
My vote of used was based on finding a good use harness. That is getting harder as the supply of decent salvage yard squares is about done. A big problem with used is getting a harness that is a good match to your truck's equipment.
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05-25-2022, 09:41 PM | #7 | ||
Senior Member
Join Date: Jan 2018
Location: Hickory Flat, GA
Posts: 4,475
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Re: Chewed up wiring harness, what would you do?
Quote:
Quote:
Definitely a challenge, especially since I'm going to need a harness for an 81 or 82 truck with A/C
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Christian Carpenter 1963 C10 - Frankentruck 283, Muncie 3 speed with overdrive Overdrive wiring here1963-ish truck bed trailer - Half-Wit 1981 C10 - Penny 305, th350 --> Soon to be 350, Saginaw 4 speed 1995 Dodge Dakota Sport "I'll put it simple: if you're going hard enough left, you'll find yourself turning right." - Doc Hudson |
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05-25-2022, 10:49 PM | #8 |
Registered User
Join Date: Jun 2012
Location: Schoolcraft, Michigan
Posts: 928
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Re: Chewed up wiring harness, what would you do?
This should get you close
25’ of red 12 ga 25’ of red 10 ga 25’ of purple 12 ga Multiple color pack of 14 ga Mouser ring terminal kit Packard 56 and 59 male and female terminals Couple feet of 16 ga fusible link wire Assortment of shrink tube Wire loom Harness tape
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1972 GMC Jimmy 4x4 LS Swap 1985 Chevy K20 1994 GMC Yukon 2021 GMC 2500HD Duramax AT4 My "It's a Jimmy Thing" Build http://67-72chevytrucks.com/vboard/s...d.php?t=583528 Budget Build 1985 K20 http://67-72chevytrucks.com/vboard/s...d.php?t=801565 |
05-27-2022, 10:35 AM | #9 | |
Senior Member
Join Date: Jan 2018
Location: Hickory Flat, GA
Posts: 4,475
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Re: Chewed up wiring harness, what would you do?
Quote:
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Christian Carpenter 1963 C10 - Frankentruck 283, Muncie 3 speed with overdrive Overdrive wiring here1963-ish truck bed trailer - Half-Wit 1981 C10 - Penny 305, th350 --> Soon to be 350, Saginaw 4 speed 1995 Dodge Dakota Sport "I'll put it simple: if you're going hard enough left, you'll find yourself turning right." - Doc Hudson |
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05-27-2022, 12:48 PM | #10 |
Registered User
Join Date: Aug 2012
Location: Oklahoma City, OK
Posts: 2,559
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Re: Chewed up wiring harness, what would you do?
Consider getting one of these to replace the existing junction point. Out of a 90's truck. Get the associated wires as well for the factory fusible links. Bonus of a heavier main alt wire if you upgrade to a 90+ amp 12SI. This was about $10 from the local Pull-a-Part a couple of years ago.
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05-29-2022, 07:47 AM | #11 |
Senior Member
Join Date: Apr 2012
Location: Otway OH
Posts: 788
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Re: Chewed up wiring harness, what would you do?
An OEM style engine harness is $288 from American Autowire. https://www.americanautowire.com/sho...harness-143825
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05-29-2022, 11:14 AM | #12 |
Senior Member
Join Date: Dec 2009
Location: TN.
Posts: 8,187
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Re: Chewed up wiring harness, what would you do?
Check out this place.
They are probably pretty close to you. Coach Controls, Inc. 4250 Spring Place Rd SE Cleveland, TN 37323 I made a visit down there. The guy is very Knowledgeable. Link: https://coachcontrols.com/index.php?...index&cPath=41
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________________________________________________________________________________________ ____________________________________________ 84 Chevy K-20 63 Impala (my high school car) http://67-72chevytrucks.com/vboard/s...Crew Cab Build |
05-29-2022, 12:24 PM | #13 |
Senior Member
Join Date: Mar 2003
Location: Colfax-California
Posts: 8,558
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Re: Chewed up wiring harness, what would you do?
I would just rewire it myself from the bulk head out. Not much wiring needed to make it run.
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05-29-2022, 10:41 PM | #14 | |||
Senior Member
Join Date: Jan 2018
Location: Hickory Flat, GA
Posts: 4,475
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Re: Chewed up wiring harness, what would you do?
Quote:
Quote:
Quote:
I'm thinking about it, but definitely a back burner project for now, so I have plenty of time to think
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Christian Carpenter 1963 C10 - Frankentruck 283, Muncie 3 speed with overdrive Overdrive wiring here1963-ish truck bed trailer - Half-Wit 1981 C10 - Penny 305, th350 --> Soon to be 350, Saginaw 4 speed 1995 Dodge Dakota Sport "I'll put it simple: if you're going hard enough left, you'll find yourself turning right." - Doc Hudson |
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05-29-2022, 11:22 PM | #15 | |
Registered User
Join Date: Oct 2015
Location: Ottawa, Ontario, Canada
Posts: 755
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Re: Chewed up wiring harness, what would you do?
Quote:
Now I would unplug engine connector @ the firewall disconnect un clip all clips unplug all connector unbolt starter, ALT, sensor plug sending units. then buy or get wire in lengths to match the harness you took of. Make sure you mark all the wire and where go and take pic before and after the wire run. Now if your putting in a LS then you will have to mod your factory engine harness any way. As far as I know you can not get the engine firewall end connector you will have to de-pin that one reuse it. https://bowtieguy.proboards.com/thre...ness-bulk-head https://bowtieguy.proboards.com/thre...d-lights-front This may help you or not.
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1977 REG cab Long Bed with a 1984 Front Clip, 82 305 .60 over 9.0.1 flat top pistons, 4bbl, TH350, w/84 SS-intake & cam , w/ 1977 big block rad, 1975 gear box, 1984 master w/ metric fittings top & SAE fitting @ portion block, 1975 3.42 gear open diff. Duel 77-87 Factory air cleaner, duel inlet from rad support . Down sized 9' to new 8' Steel flat bed Was a 77 454 w/308 gear. Taken out 550 lbs. up front with motor clip change. |
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