So Beno, you're saying It's not this easy? Do you think it can truly be done with the tcase still in the truck? I already have the short birfs so no machining required there.
I'm not saying that it is hard Mark, but it does require some specific style snap ring pliers, a clean environment where you can remove the rear extension housing, the center case, and shims, etc.
Being very careful about the numerous snap rings you will be removing since the snap rings in fact keep the gears in tolerance. If you bugger any of those up you will have to sort of "reset" up the gearing. Also, if you bugger the large taper bearing you will need a new one which means pressing in the bearing as well as the race on the rear case housing. All of those need a 10ton press at the least as well as a jig and press tool.
Like I said, this isn't difficult per se, but it can be costly if anything goes wrong.
Good luck!