fiberglass tub and wiring harness -
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post #1 of 7 Old 12-28-2001, 11:02 PM Thread Starter
OlllllllO JEEP
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Location: overland park ks
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Red face fiberglass tub and wiring harness

I am about to ATTEMPT to install a new fiberglass tub on a 1980 CJ7. The wiring scares me. Has anyone ever done a tub before? Is it difficult? Should I fork up the $$ and pay someone to do it right? How do I find out about getting a wiring harness? If you have any answers for me please send them to Thanks for your hellp.

1980 CJ7...304 Automatic...few mods. Edelbrock intake and 4bbl...headers. Nothing major...but it is a JEEP!
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post #2 of 7 Old 12-28-2001, 11:40 PM
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Do you still have your old harness? It should work ok, just have to run ground wires to each device.
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1979 CJ7 (YJ tub) full cage, Currie 9inch rear with Warn full float kit, detroit locker, 456 gears both ends, Lockrite in front, T 18 trans, 360, 040 over, Isky cam, 2 into 1 Flowmaster exhaust

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post #3 of 7 Old 12-29-2001, 09:53 AM
glm 87 wrangler
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Well you may be in luck with a cj7 they make painless wire systems for them and they from what i hear are fairly easy to install.They are marked so you know were are the wires go.They dont make them for an 87 wrangler so i myself am not in luck.But i have seen them and they look fairly easy.You can try 4x4 hardware or They may have them instock.Good luck

Gary 87 Wrangler 4.2 258 with weber carb and TFI upgrade.
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post #4 of 7 Old 12-29-2001, 09:50 PM
G Beasley
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The painless harness is easy or you can use your stock harness with a return ground on everything . On your jeep the tub acts as the ground and you lose this when you go to fiberglass . Even with my painless harness I have a bussbar with a direct ground to the frame under the dash . It makes it a lot easier than pulling a ground for everything to the frame and it leaves under the dash neat and relativley wire free . Hope this helps and happy jeepin .

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post #5 of 7 Old 12-30-2001, 06:57 AM
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Ive done 2 fiberglass bodies so far. If you dont have any electrical experience, its going to be tough to try and reuse your old harness, especially if it has been damaged. You may want to buy a new harness, they are not real hard to put in. If youve got some electrical Knowledge, then i suggest just using your old one. Just remember that which ever way you go, you need run a ground wire from all lights,and guages to the frame. Run one ground wire from the metal dash board to the frame, this will take care of all the gauges on the dashboard. Run a ground wire to frame from all your lights, front, rear, and side markers. Run ground wire to frame from the fuel sending unit.Be sure to ground the starter solenoid also, or it will never turn over. Buy yourself a Haynes manual. They have wiring diagrams in them which will be very helpful. Good Luck
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post #6 of 7 Old 01-10-2002, 08:27 PM
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I don't know if you've already installed everything...but Centech's Harness....(JP)...Is a good it's $100 cheaper...Just put it in my 84 CJ7, Has instructions for fiberglass bodies and how to ground
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post #7 of 7 Old 01-12-2002, 01:26 PM
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I would definitely go with a new harness. The wires in your jeep are old, and it would be worth it to have new wires, and a new fuse block to work with. Good luck. Post some pics when you are done.

76 CJ5
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