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Old 09-25-2006, 12:27 AM
wickedwagon767's Avatar
wickedwagon767 wickedwagon767 is offline
Bleedin' Gasoline
Join Date: Dec 26, 2005
Location: DFW
Posts: 1,932
New Wiring harnesses

ooook, I've heard good things about Zacks (Z&M Jeep) replacement harnesses. But, what about Painless Wirings' universal harnesses, or better yet, can their CJ harnesses be PAINLESSLY modified to work in an FSJ?

Their harnesses are nearly half the cost of the Z&M sets and Painless Wiring is right down the street from me.

Any thoughts? Any other options out there you guys and girls know of?
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Old 09-25-2006, 02:03 AM
oldyellowwagoneer oldyellowwagoneer is offline
Master Mechanic
Join Date: Jun 27, 2001
Location: canby,oregon,usa
Posts: 1,401
Painless makes a great trouble-free kit. I've used it many times and have been very happy with them. Make sure you have a good diagram of the insturment cluster however as that will be your hardest part. If you use the universal harness, or even the cj harness get the one with the gm steering column harness. I recommend the 18 circuit universal gm keyed harness for the most flexibility. the part# is 10201. Dennis
“Don't do anything by half. If you love someone, love them with all your soul. When you go to work, work your *** off. When you hate someone, hate them until it hurts.” Henry Rollins
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Old 09-25-2006, 06:14 AM
Wagoneerlover Wagoneerlover is offline
350 Buick
Join Date: Jan 18, 2004
Location: Maryland suburbs
Posts: 1,455
it just so happens that I am converting the Painless 18 circuit harness as we speak. I actually did not do any splicing and have completely replicated the old harness and even connected the wiring to the old oem connectors and the bulkhead connector. I have a write up on it and a few pics. If you need any info let me know. I am about to re-install it in the truck as we speak. I did however do a lot of re-wiring as many of the factory wiring decisions were not ideal for me. (Ie. I re-routed the wiring on the outside of the vehicle to the inside.) Most important thing to remember is to save the old harness. There are many connectors that you simply cannot replace and if you throw them away you are screwed.) If you have the time and the patience to sit and cut wiring and trace wires then go for it. I can probably save you some time if you use the painless harness as I am 90 percent percent done and I can save you time on finding some of the parts as I have the part numbers for the pins that you need to connect everything to the bulkhead connectors etc.

Here is a a link to the thread and I have one or two pics there but I have so many more pics.
88 Grand wagoneer AMC 360 all stock
89 Grand Wagoneer AMC 360 (Deceased)


1. Electric Radiator Fan 10/15/11
2. Cs-144 Alt 10/1/11

1. TBI
2. New fuel tank
3. AW-4 Transmission
4. Aluminum condensor
5. Custom Gauge Panel

Last edited by Wagoneerlover : 09-25-2006 at 06:19 AM.
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Old 09-26-2006, 02:09 PM
wickedwagon767's Avatar
wickedwagon767 wickedwagon767 is offline
Bleedin' Gasoline
Join Date: Dec 26, 2005
Location: DFW
Posts: 1,932
Thank you for the replies.As soon as I get the drivetrain pirated from the '74 J20 and get it all rebuilt/swapped into my Wag I'll be heading towards the electrical and interior.
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Old 09-26-2006, 02:22 PM
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greatbg greatbg is offline
New Member
Join Date: Sep 13, 2006
Location: Nampa, ID
Posts: 17
I used an enos black box in my 77 cherokee. I had custom gauges so that part was easier. Very happy with it so far.
Good luck
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