I am going to be doing the same thing. For the front you have to grind off the inner knuckles and rotate them to 7 degrees of caster and re-weld them back on. Other than that i think it is Fairly straight forward. ANd maybe move the perches. I know with a YJ frame everything lines up almost perfect. With a Cj frame you may need to outboard the springs. I have not fully researched it yet. ANd figure i would figure most of it out when i finally pick up a set of axles
look at this thread
http://www.bulltear.com/forum/viewtopic.php?t=1006&highlight=
and here is a link from randys right up
http://www.jeeptech.com/convaxle/ihscout/d44f.html
-Paul