I am going to go with "yes" on that.
I had duals in my 4runner, and liked them very much. The gear choices were awesome, problem was that because it was a v6 truck the adapters and upgraded 23 spline stuff added up quick $$. With this one being an automatic, I get to "cheat" more and I think that a single 4.7 case will work just fine.
My buddy Bill, YJ posted above, had a 3spd auto in that jeep with a 4.3 atlas, 4.56's and both 36 swampers and 37 MTR's, it worked great in the rocks. Another friend had a klune v/beefed 231 in his cherokee, with an automatic, he ended up selling it and putting a 4.3 atlas in. Liked it much better.
Dual cases help tremendously with drivelines in minis because stock the front shaft is pretty short, so the angles are steep when you lift them. When you dual it, then you add six or so inches to the front driveshaft which helps with the angles. Since the adapter on this truck is at least that long, I have the needed driveline length already.
The plan is to take the cv from the front shaft and have it installed on the rear shaft, and take the flanges from the rear shaft and build a "square" front drive shaft out of 2x2 tubing. Read cheap.
Jack