If you wire the speedhut dimmer to any of the factory dash gauge light circuits, then you're tying into the light circuit after the factory rehostat (dimmer). That means yes, two dimmers, but the way that the factory dimmer works messes with el wire light dimmers, such as the speedhut dimmer.
Buddy of mine is selling his vortec converted, manual transmission, FJ62. Pretty sick rig, converted 8 ish years ago (?) by IPOR.
Looks like it might be. I posted this contactor and other potential replacements in this thread, because it seemed more appropriate there:
I was going to say alternator excite wire. There should be minimal amperage going through that wire.
If it was connected for a short while and burned, then incorrect connection to something. If it has been there for a while and suddenly burned, then corrosion or alternator failure.
Well, my superwinch contactor is bad, won't power out anymore. Looks like the superwinch 90-14452 is discontinued, as is the Albright DC88P equivalent. The warn 34971 is bigger than the superwinch/albright, but it looks like a new version of the DC88P is out, called the DC88P-1000.
Going back to this, finally got around to testing. Turns out the contactor was bad, and you were right all along! Thanks for the guidance.
Now just to find a replacement for the superwinch contactor that's now nla:
Bumping this up.
Do we know for sure if the 80-83 switch will plug into the later J6x trucks? The ignition switch in my truck has more or less failed, and finding even a used 84-87 switch is proving difficult.
From the date codes, SOR doesn't have anything that will "fit" a 10/86 production...