Installed the new lock cylinders yesterday.... went pretty smooth (except getting to one of the screws... a real pain). I did discover that the doors actually have double locks... that is, if you lock the door from the inside, you can't unlock it with a key from the outside. My pass. side still had troubles... couldn't get it to release latch... turns out it was the inner lock causing the problem so I just cut off the little tab. The end result is that I won't be able to lock the door from the inside but will at least be able to use the new keys.
I'm about two weeks away from truck launch!