[mr48chev]

Well it is apparent that the guy who installed or put it in wasn't into having everything neat and orderly as far as wiring goes.

As far as universal of brand specific that primarily goes with what ignition system you have, what alternator you have and what turn signal switch you have. More for the turn signal switch hookup and alternator connectors in those days than anything else.

As far as how the individual put the wiring in before, from everything I read on here and other boards most guys would rather go do the yard work that their wife has been harping about than do the wiring on their trucks. It takes a lot of patience to do it extra neat and orderly. That might take looking at it with a serous though of how you can straighten it out to be right without just pulling out the wire cutters and start cutting as that isn't productive.

I think right now I'd be sending the Painless tech support an email with a clearer photo of the fuse block asking if they have the correct wiring diagram for that model of harness. Explain just what you did here in that you believe it was installed in that time frame and that you really need a wiring diagram that would be correct.

That said I'd think that besides the year and model specific replacement harnesses you will find that most Painless harnesses were the same as far as what wire goes where for years on end. They are normally GM color coded as are most aftermarket harnesses and as I said before the connectors on the end of the wires going to specific items determine if they are intended for Ford, GM or Mopar in a vehicle.