'71 dashboard wiring harness compatibility

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French demon

French demon

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Hello guys

Cause to an electrical failure, my dashboard wiring harness needs to be replaced (decades of bubba job behind the dash) :BangHead:

I would like to know what wiring harnesses could be compatible with my '71 Demon slant 6.
Here, in Europe, this kind of harnesses are obviously unavailable in NOS part, nor in repro.
Have to find it in USA or Canada, and of course with expensive taxes and customs duty :(
I have to look for an used harness and maybe a '70 Duster or more recent A-body models ('72,'73) could fit.

All help will be greatly appreciated
Thank you
Francois
 
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I'm sorry to read this, but remember you had written before about hacked wiring.

French demon said:
what wiring harnesses could be compatible with my '71 Demon slant 6
Click to expand...
Most accurate answer. Check the part number of the harness. I have found the harness number on white tape wrap very close to the headlight high/low switch connections.

This is my '67 Barracuda
upload_2020-6-17_23-7-13-png.png


upload_2020-6-17_23-5-39-png.png


With the p/n then can compare in the parts books and also when someone offers a harness.


My best guess: Maybe.
'71 Slant six should have the same instrument harness as v-8 cars.
'71 Demon probably had the same instrument harness as other Dodge A-bodies except those with a "rally dash."
At one time, Plymouth Valiants had different instrument panel than Darts. I think by '71 they are the same but should check.
For example, in 1968 and 69.
upload_2022-3-31_8-15-1.png

Blue points to rally dash (Barracuda)
Orange is Dart (coded L in drawing)
Green is Valiant.

I *think* for '71 you may find just standard dash and rally dash. Console and light packages are probably seperate harnesses.

Other years. Less likely. Check the p/n to see if it was also used in either '70 or '72. '73 is almost certainly different. I recall the horn wiring was relocated in those years.
 
Hello Mattax

Yes, I forgot to tell that I need the main wiring harness only.
My little separate harnesses for light package and so on, can be re-used.

And yes, I have the standard cluster.
Unfortunately, I do not have the Mopar parts book and the s/n won't be a great help.
I'm going to post a research for a '70-72 Duster, '70-72 Dart and of course '71-72 Demon main wiring harness.

Thanks again for your help :thankyou:
Francois
 
French demon said:
Wow, yes of course I'm interested. :thumbsup: Thanks.
Maybe in a large padded envelop (or a little box) and by Canadian Air it won't be too much expensive. Can you check? My french zip code is 11100. City : Narbonne.
I can pay you with PayPal. How much do you ask for it?

Francois
Click to expand...
Send me a PM. Your inbox is full. I'll check it's condition today.
 
French demon said:
Hello guys

Cause to an electrical failure, my dashboard wiring harness needs to be replaced (decades of bubba job behind the dash) :BangHead:

I would like to know what wiring harnesses could be compatible with my '71 Demon slant 6.
Here, in Europe, this kind of harnesses are obviously unavailable in NOS part, nor in repro.
Have to find it in USA or Canada, and of course with expensive taxes and customs duty :(
I have to look for an used harness and maybe a '70 Duster or more recent A-body models ('72,'73) could fit.

All help will be greatly appreciated
Thank you
Francois
Click to expand...
Sorry fellas' this isn't a parts wanted thread. Let's keep parts sales in their proper forum. The right thing to do is start a parts wanted thread.
 
I think you've got a good solution here!

As far as p/n you can check the one on your car.
Then go to mymopar.com and download scanned parts books.

Here's a '70-71 I down loaded from them a while back.
It's a little confusing thats why its best to have the actual number from harness wrap.
upload_2022-3-31_9-41-19.png


upload_2022-3-31_9-38-41.png


So it looks like a '71 Dart had instrument wire harness 3513 118, 3513 122, or 3513 136.
 
French demon said:
Hello Mattax

Yes, I forgot to tell that I need the main wiring harness only.
My little separate harnesses for light package and so on, can be re-used.

And yes, I have the standard cluster.
Unfortunately, I do not have the Mopar parts book and the s/n won't be a great help.
I'm going to post a research for a '70-72 Duster, '70-72 Dart and of course '71-72 Demon main wiring harness.
Thanks again for your help :thankyou:
Francois
Click to expand...

Of course you do.........maybe.........go over to MyMopar and download the parts book and service manual.

COULD YOU rebuild a different harness or the one that is damaged? This CAN be done. MOST of the connector terminals are available, and SOME of the connector shells are available, if you cannot re-use your old ones

Stretch the thing out on a work area, preferably a wood surface that you can stretch it out and nail/ tack it into place. Unwrap it, while tying off the various branches so that you can maintain the length and branch points. Replace each wire 1 by one

This is no fun and it is tedious. But it can be done.

MyMopar: MyMopar

Parts manuals page:

Parts Manuals – MyMopar
 
I maybe have the opportunity to buy an original '71 Demon harness from CFD244 in Ontario.
If not, I can try to rebuild the original harness, yes.
I have already made this kind of job (for a BMW)
The main problem is purchasing connectors and shells if needed. Purchases in USA are heavily taxed.

Rebuilding my harness remains the last solution for me.

Wait and see :rolleyes:

PS : thanks for the links

Francois
 
French demon said:
Cool :)

My Demon is LL29, with B engine
So, the wiring is 3513 109

:thankyou:
Francois
Click to expand...
This parts book can be a little confusing.
Engine Type is the column head.
To the right are the Body Codes
upload_2022-3-31_13-30-40.png


upload_2022-3-31_13-31-35.png

upload_2022-3-31_13-34-15.png


3519 109 is for a 1971 E-body Barracuda or Challenger with standard instrument panel
 
Seems like a reasonable guess. Best to look underthe carpet.
I'm guessing L-L is Dart-low price, L-M is Dart medium price, L-H is Dart High Price.
I don't know the 1970 - 71 cars anywhere close to well enough to make a guess as to what the actual differences were.
Best to look under the carpet.
 
My LL Demon has the same instrument panel than the 1971 Valiant Duster
That's the standard dash panel for Demon L6 and 318, the rallye dash was standard on Demon 340 only.

In fact, same politic for Dart/Demon and for Valiant/Duster in 1971.

003.jpg
 
As an export model, this may be how it was built or it may be a change someone made.

On the engine, the only difference I can think of which will be important to the interior gage panel is the oil pressure sending unit.
The Rallye instrument cluster includes an oil pressure gage.
The standard instrumentation uses a low oil pressure warning light.
 
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French demon said:
My LL Demon has the same instrument panel than the 1971 Valiant.
Click to expand...
Sorry I was reading and typing and didn't see your reply. I edited my reply above.
Yes!
So what is going on here?

Why is there a Plymouth instrument panel on a Dodge Product?

Maybe this is why the instrument wiring was a mess.
 
"Google Images" 1971 Dodge Demon interior pictures. Mostly all of the non Rally clusters are the same as the op's.
 
Mattax said:
Why is there a Plymouth instrument panel on a Dodge Product?

Maybe this is why the instrument wiring was a mess.
Click to expand...

No, it's normal. Same dashboard for Demon and Duster.
My demon is matching. Just a wiring harness that has been altered by a previous owner. Why? I dont' know.

Francois
 
OK. Thank you.
Hopefully with all this you now can determine what is needed.
 
Troy (CFD244), in Ontario, offered me the opportunity to buy a '71 318 Demon main wiring harness in a very good shape.
No part # label, but Troy sent me some pictures, and it seems that this wiring will perfectly fit my Demon.
Visibly, no difference between L6 and V8 harnesses

I tried to identify all connectors, and except for cutted ammeter terminal wires (not a big deal to fix this), the harness looks very nice and ready to work.
Demon '71 resistor with legend.jpg

If you see an error, do not hesitate to correct it.

Nice fusebox with no rust.
IMG_0020.JPG



Troy is a really nice guy, he's going to help me getting my Demon back on the road :thumbsup:

François
 
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Agreed, great guy who has helped me out greatly as well:thumbsup:
Nice looking harness and fusebox!
French demon said:
Troy (CFD244), in Ontario, offered me the opportunity to buy a '71 318 Demon main wiring harness in a very good shape.
No part # label, but Troy sent me some pictures, and it seems that this wiring will perfectly fit my Demon.
Visibly, no difference between L6 and V8 harnesses

I tried to identify all connectors, and except for cutted ammeter terminal wires (not a big deal to fix this), the harness looks very nice and ready to work.
View attachment 1715899810
If you see an error, do not hesitate to correct it.

Nice fusebox with no rust.
View attachment 1715899811


Troy is a really nice guy, he's going to help me getting my Demon back on the road :thumbsup:

François
Click to expand...
 
Yes, ammeter terminal rings are of a common model.

Cosse ronde.jpg


I will solder new ones and heat shrinkwrap them. Easy job.
I could leave these two wires alone, but it would be a shame, my ammeter works :D

François
 
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