You may have to drop the rear drive shaft if using a dolly. Why you say? Because with many versions of the 231 transfer case there is not a "true" neutral. What that means is when the t-case is in neutral it is disconnected from the transmission and from power. BUT, the front and rear are still connected. Test it by jacking all 4 wheels off the ground and with the tcase in N spin one of the tires and see what happens to the others.
The references above scanned from the manual are for flat towing but the same issues apply if you have a lunchbox locker in the front and are flat towing
Your mileage may vary but it's easy to test it.
more detailed info here