Do not make the mistake of buying a 22 or 24 circuit wiring harness because the $140 12 circuit harness from Speedway is all you need. As was stated these trucks have very simple electrical systems. I would ditch the generator and go with an alternator mostly because I'm cheap and generator/regulator parts are way more expensive plus the alternator has way better output at low rpm. If connected to a trailer the extra electrical power output is handy. Electric wipers are a near must for trailer pulling. On high humidity days in the winter a defroster won't clear the windshield but turning the a/c on clears it instantly, something you might consider.


Evan