Here's some info and pics when I did my crossover:
http://coloradok5.com/forums/showthread.php?t=200968
The link has pics before the zero rates. The pic below is after the zero rate install:
Cliff note version of crossover (I think I hit all the main points):
1. The stock steering box uses a push pull drag link. Short link + lift = bump steer and death wobble when other parts of the steering are starting to wear and not in perfect setup.
2. Crossover requires either swapping the entire steering box from a 4WD to a 2WD box. There are two different style 2WD boxes. All I know from reading is the hose connections are different. Someone smarter than me about those specifics will need to step up. Make sure you bleed the steering system before starting the engine when you do this step.
You can also use a 2WD sector shaft swap. This is what I did and got a steering box leak out of the deal.

(Rebuild in the future)
3. You will need either a Ford van pitman arm from a junk yard or a new drop pitman arm to re-index it from front/back to left/right on the sector shaft. I bought a new drop pitman arm. I didn't have the time to search local yards.
4. A bent drag link
CLICK is needed or a replacement cross member may be needed. I went with a bent drag link to prevent the drag link from hitting the stock cross member. I used
CLICK - Parts Mike for everything. I ordered a custom bent drag link for my set up. It was about the same price as a pre-bent.
5.
CLICK Steering box brace
SHOULD be done at the same time. Either a weld in or bolt in. I went with the bolt in. I didn't have any cracks around the steering box bolt holes.
I also did zero rates when I did my shackle flip. I went from a 2 1/2 to a 4" front lift + the zero rates.
I had Part's Mike install new ball joints on both knuckles when they did the milling. I also replaced all the tie rod ends when I did mine.
I can swap all of the crossover stuff onto a D60 if I ever decide to go that route.
Plan your project when possible. I got a great deal on Yukon 4340 shafts. I held on to them for almost a year until I had the money to do the crossover. I did the crossover, Lock - Right and shafts at the same time since it was torn apart.
