When I get ready to take on a project like yours one day, I fully intend to completely gut the wiring and start fresh. If you're not going for 100% factory look, having to build your own dash panels may not be too bad, you could do some pretty cool extra stuff.
I saw in another thread somebody on ebay sells dash panels. You might try Mauk Ind. for wire harnesses. Have read elsewhere that they di a good job at reasonable cost. Look at "Coated my dash panels" thread.
I've seen that thread. If I don't go with polished stainless panels I'm likely gonna get them powder coated.
A guy never really thinks about the amount of wiring crammed into a truck until its laying out on the ground. Amazingly the OEM wiring looks pretty good for going on 36 years old. Just too many "field fixes" and hack job repairs done to it over the years.
Any ideas on what this box is? Looks like its a flasher module or something but the harness already had a mechanical flasher wired in.
I saw a show truck at the Iowa 80 Jamboree, and it had a photo album of the restoration, btw, not an old truck, a 95 379EXHD, and it was not a radical build except he put 2 gears boxes in it, hooray! One of the pictures showed the wiring before it got crammed in the dash. It looked like it was long enough to go across the Golden Gate Bridge.
Ok. I know the the thingamajig wasn't working right so maybe this whatchamacallit is broken. I pulled a thingamabob out of there too but it looked ok.
Started cleaning brackets and hoses off my firewall this morning. Unfortunately some wasps have taken up residence in the cab somewhere. Since I'm allergic I decided to wait until someone else is home. Still didn't stop me from killing a few with a can of brake clean