From what I hear you should be able to get around 3-4 inches of lift. I plan on doing mine that way but I am starting to consider doing a 1 link in the rear, and trailing arms in the front with coil overs just to have a little extra travel.
the front will most likely need either new"boomerang" shackles to reach back further and still clear the body mounts, or the stock shackles, the front hanger moved forward, an IFS steering box, and a Hi-steer conversion. The rears up front will move your axle sligthyl forward and the stock push pull steering wont cut it after that, you will only have say 20 degrees steering left, and 60 to the right because of the repositioning of the axle otherwise.
Rears: both mounts at the frame must be moved when goign to a 63" You could run a double shackle to get by moving the rear, but the front if memory serves me right will need to me moved regardless otherwise a new drive shaft will have to be made to go with the change in wheelbase.
You will also need a new front driveshaft for the same reason. My 4runner would loose the front driveshaft under articulation. Thats a cheep fix though, just build a square driveshaft which if you can do any of the other stuff I mentioned already should be a cake walk.
63" conversion:
http://www.pirate4x4.com/forum/showt...threadid=20665
Rears up front:
http://www.pirate4x4.com/forum/showthread.php?t=265669
Pirate4x4 is a great resource, just dont ask any Noob questions without searching first or you WILL be flamed.
to search Pirate4x4's forums at google type site

irate4x4.com/forum (space) then what ever you are looking for.
Best of luck and I am serious when i say dont ask any noob questions. the guys there are smart, but can be real A-Holes.