Instructions for the most part are top notch. One sheet...the ends of the wires are all numbered. The instructions tell you what numbers go where. The only one that was built incorrectly was the front right headlight wire. It took me two seconds to put new end on it and wire it up right.

I bought the turn signal switch to go with it. The only problem I am having is only 1 side has brake lights in the back end. I don't think that will be a hard fix, I just need to tackle it..

As far as aftermarket parts go, the harness was probably the best quality of anything purchased so far.

My truck is staying 6V for now as everything works and I have an extra new 6V generator and voltage regulator on my parts pile