All joking aside; here's the deal:
(1) Pay close attention when you remove the switch and the mechanical parts that attach it. It goes back together exactly the opposite way you took it apart. Your failure to observe what you did, when you did it and what happened when you did it, will not help you with a plea to us when it won't go back together. (Of course, if you've landed here because you didn't pay attention when you took it apart, and reassembly information is what you looking for, you must feel pretty stupid by now. No problem, we're pretty much "stuck on stupid" ourselves. After all, that's what this website is all about. Free and comprehensive info is available for the repentant).
(2) The parts package doesn't look right, but it is.
(3) Pull the fuse for the stop lights/switch. There is power to it with the ignition off. It's easy to short the circuit to ground while trying to strip the insulation. Remember that you're working in a very tight spot and around a lot of grounded metal parts and Ford does not supply any spare 15 amp mini-fuses. (We stole one from John's S-10 Chevy).
(4) You don't need the plastic mounting bracket that comes with the new electrical connector. Pull the conductors through the bracket and cut them 6 inches in length and make your splice. Neaten up your mess with the supplied wire ties.
(5) Replace the fuse, put your hat back on, flip your bifocals 180 degrees, slide your head around and rest it on the brake pedal. You should see brake lights out of the back window.
If you don't, you know the routine.
* NOTE: If you think you can just lay on you side and one-hand this, your mistaken, it can't be done, I tried. You may not have to be inverted 180 degrees, but
save yourself some time and frustration and "get comfortable".