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Old 08-10-2022, 01:03 PM   #1
Hart_Rod
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Aftermarket wiring harness

Does anyone make an aftermarket interior and body wiring harness for the OBS trucks? I know there are universal ones out there, but prefer to have an OEM style. TIA
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Old 08-11-2022, 07:01 AM   #2
Palf70Step
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Re: Aftermarket wiring harness

I have not noticed any, but then again I have not had to look much either. Hopefully some others with more experience will chime in for ya Rob.
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Old 08-15-2022, 01:30 PM   #3
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Re: Aftermarket wiring harness

What's wrong with the factory harness?
If I run into a few damaged wires I just repair them.

If some butcher cut the radio plugs off get a cab harness from a salvage truck and either install it or cannibalize it.
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1976 Chevy K20, 6.5L, NV4500/NP208 SOLD
1986 M1008 CUCV SOLD
2000 GMC C2500, TD6.5L, NV4500
2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263
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Old 08-15-2022, 03:16 PM   #4
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Re: Aftermarket wiring harness

Quote:
Originally Posted by hatzie View Post
What's wrong with the factory harness?
If I run into a few damaged wires I just repair them.

If some butcher cut the radio plugs off get a cab harness from a salvage truck and either install it or cannibalize it.
It sat in a hay field for 20 yrs, rats and squirrels feasted....
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Old 08-15-2022, 03:43 PM   #5
Palf70Step
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Re: Aftermarket wiring harness

Only thing I saw was this



https://www.ebay.com/itm/125461366781
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Old 08-15-2022, 07:26 PM   #6
hatzie
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Re: Aftermarket wiring harness

The year makes a difference. I would reccomend finding a cab harness from the same year truck.

Looks like you have an LS in the engine bay so you're going to have to make a hybrid engine bay harness.
GM separated the fuel tank, rear lamps, forward lamps, and wipers/engine at the bulkhead plug.
__________________
1959 M35A2 LDT465-1D SOLD
1967 Dodge W200 B383, NP420/NP201 SOLD
1969 Dodge Polara 500 B383, A833 SOLD
1972 Ford F250 FE390, NP435/NP205 SOLD
1976 Chevy K20, 6.5L, NV4500/NP208 SOLD
1986 M1008 CUCV SOLD
2000 GMC C2500, TD6.5L, NV4500
2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263
2009 Impala SS LS4 V8


RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials...Please include at least the year and model in your threads. It'll be easier to answer your questions.
And please let us know if and how your repairs were successful.
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Old 08-18-2022, 04:06 PM   #7
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Re: Aftermarket wiring harness

Quote:
Originally Posted by Palf70Step View Post
Only thing I saw was this



https://www.ebay.com/itm/125461366781
Thanks Bill!

Quote:
Originally Posted by hatzie View Post
The year makes a difference. I would reccomend finding a cab harness from the same year truck.

Looks like you have an LS in the engine bay so you're going to have to make a hybrid engine bay harness.
GM separated the fuel tank, rear lamps, forward lamps, and wipers/engine at the bulkhead plug.
We have a Speartech harness coming for the engine/transmission (LT: L86/8L90). I'll probably end up using a universal harness and just rewiring the entire truck. Thanks for the input!
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