as far as I know you need a 4x4 rear & front driveshaft, transfer case, front axle, front axle spindles, shocks, springs, all the wiring and all the brackets.
I'm switching from 4wd to 2wd and i'll have front axle, spindles, shocks, springs that I can exchange straight accross for your 2wd spindles, beams, and radius arms. this will lower the expensive parts you'll need. let me know. -tristan 818-679-1030