From this thread
I was dreading it for over a year, but wasn't too bad. Your experience might be different as I have a Tundra front end, AHC delete, and no front sway bar. I worked slowly over a few days to get it done.
I had to do the following:
remove front and engine sections of my skids
remove wheels (2)
remove shocks (2)
remove tie rod ends (2)
undo the front diff mounts (3) and let it hang down as much as possible (cvs and drive shaft still attached)
undo upper engine mount bolts (4) and lift engine up until fan jams up against shroud
Undo rack mounting bolts (3), steering coupler and steering lines (2) from rack.
remove oil filter cap
I was able to snake the rack out the passenger side hole. I didn't think I was going to be able to do that and was going to have to fully remove the front diff. That made my day when I got it out without removing the diff.
I couldn't get the new rack back in the same way without removing one of the hydraulic lines attached to the rack. So you might want to remove the hydraulic lines off the old rack, which might make it easier to remove.
Make sure your diff breather line is attached before pushing the diff back into place.