Well, you can. You'd need a 4wd AX-15 to donate parts though, or buy new parts (scary expensive).
Then basically it's a complete rebuild. Most guys are afraid of trannies, for pretty good reasons.
Get a 4wd AX-15.
(Oh, as a curiosity, you could run a divorce tcase and use a 2wd tranny. But it would be WAY more work than it is worth)