I'm trying to find out original wiring spec. Thanks
SOURCE: 87 regal ignition switch wiring diagram
Thick wires at IGN SW .... Red(s) - supply power from the battery to the IGN switch ... Pink - ignition supply ... Orange - Accessory power ... Purple most RWD sometimes (Yellow most FWD) - Starter .. Did I miss any? It's been a while The thin wires on the IGN swich are for key sense and VATS (if applicable)
SOURCE: I have a 1983 International Harvester Semi. I'm
One of my favorite places is http://www.the12volt.com/installbay/vehiclewiring/1/yeard/Chevrolet.html however , I still have to refer to my FRSMs (Factory Reprinted Service Manual) from International/Navistar. You can contact your local dealership for the manuals for your truck or you might try http://www.midnighttrucking.com/ or http://www.binderbulletin.org or http://www.binderplanet.com or http://www.oldihc.org/ or quite possibly even http://www.yesterdaystruck.com/
Good luck and keep binderin' on.
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