It might work, would have to measure one to be sure. If you were to use one, get it out of a Rubicon edition Wrangler, they use Dana 44s instead of the 35, which would be far too weak for full size truck, plus they have a much stronger t-case. You would want both axles, not only to keep the gears right, but to have matched brakes and wheel bolt pattern (5 x 4.5).
Personally, if I were to build one (an I did consider it, even had a bare chassis spotted at a local salvage yard), I would look for either a 3/4 ton Dana 44/ Corp. 14 bolt or a 1 ton Dana 60/Corp. 14 bolt combo with either an NP 205 or 203 t-case. I know it's overkill, but like they said in the first Cannonball Run movie, "If you're going to be a bear, be a Grizzly!".
