M & H may be able to help with a new wiring harness. They made the engine compartment harness for my 65.
Below is part of a thread I had on FABO a couple of months ago with contact information.
Good luck
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the old cable was routed from the starter forward to the front (radiator side) of the shock tower and up to the battery. The repo cable, because of the length and location of wrapping could only be routed behind (firewall side) the shock tower and then to the battery. I debated with myself and was almost convinced to just leave like that until I referenced my other 3 Barracudas. (now I own a 66 to restore with its parts car and the 65 parts car) All 3, plus looking at pictures of other cars showed the cable routing in front of the shock tower, not behind it. My show quality - will not be disappointed cable didnt look right nor fit correctly and too expensive not to. But there seemed no other option.
Ah.. but it turns out there is another option and a much better one at that. M & H Electric Fabricators, Inc in Santa Fe Springs, CA can reproduce a correct positive battery cable for your car.
The web address: (
www.wiringharness.com) But you wont have much success navigating M &Hs web page for battery cables. Most inquires throw you back to Year One as M & Hs exclusive and only distributor. Yet you cannot find a 65 Barracuda positive battery cable listed by Year One.
I finally gave up on the web page and called them (562) 926-9552) and talked to Robert Wallace, one of the most knowledgeable humans on the subject of automotive wiring. I gave him the Chrysler part number as found in my 65 parts book (2587178). ( note: part number 2587178 was stamped on the remains of my original cable as well) He confirmed they could build the cable to specifications derived from original factory technical drawings and the cable was set-up in their system as part number 35230. The cable would have the correct woven insulation on the starter end as the original.