What are the chances of putting one of those new rubicon Dana 44s on a 2001 XJ?  I have seen some coil conversion/lift kits for the XJ.  Does anyone think it is possible with just a little fab to swap them in?  Or is it just too complicated?  Any help/thought would be great.  Thanks  

yep, slap on some new brackets and bolt em in...  

cut away everything you dont need on the housings i.e. anything coil over buy an angle finder a GOOD tape measure and someone who can weld and keep te rear as stock as possible i have found that doing swaps from leaf to coil sus. is alot harder than keeping the rear leaf and changing the housing form coil to leaf also buy a really good grinder and plenty of cutoff wheels otherthan that make sure the locker still works before you buy them  

Wow, that is awesome news.  I like the idea of keeping the leaf springs cause I think that I can keep my current lift.  Any idea on how the track widths are different? Would that be a problem?  

they are a couple inches wider..  

track width isnt really important ...well to me. any way most of the time you fight a constant battle with gravity's center the higher you go the wider the better as long as you respect the laws of your state and localities. i used ford 44 up front and a wagoneer 44 back so my total front was 6" over stock and the back is over 2.5" but you must remember to measure a thousand times to make sure you have everything straight and square also most pinion angles should be close to 6 degrees diference as possible or you get bad vibes that exp talking anyway you should have fun doing a swap like this i did mine in three days in my driveway and soon will do another one to switch the back to a 14 bolt or a 60  

I could see how pinion angle on the rear could pose a problem with wagoneer rears, they are also off set..  

pinion is really bad for the rear thinking of getting 14 bolt from a friend to center it but then id have to empty another pocket and spend this winter in the driveway too