Well to convert you need a transfer case that will mate to your transmission and a complete front axle. The DJ5 will accept all the 4wd parts from the CJ5 as far as I know and the same shoudl be true of the CJ6, 7 & 8 so you have a lot of years to scavenge from.
-= Francis =-
[SIZE="1"][I][SIZE="2"]These, in the day when heaven was falling, The hour when earth's foundations fled, Followed their mercenary calling, And took their wages, and are dead.
Their shoulders held the sky suspended; They stood, and earth's foundations stay; What God abandoned, these defended, And saved the sum of things for pay.