A833 OD 340 4x4?

Now, question. If i was to put a transfer case behind the 727, what would it be? Say. I could steal everything from a 4x4 Ram vehicle, I suppose, no?
I'm not a truck guy, so I don't know the current designations. Back in the day, I worked for a company, and rebuilt hundreds and hundreds of transfer-cases for the army. There were just three kinds in those days; the NP 205, the NP 203, and some junky lil Jeep/Warner thing that I can no longer remember the designation of. One of those was an all gear deal. The other had a big old chain and a center differential that was used as a Power-Divider. The OEM chains were not strong enough in those days and quickly stretched out to make trouble. But that chain was quickly re-engineered, and the replacements seemed to survive; remember I built these for the Canadian Army with young bucks driving the crap out of them in training and such.
I think it was the 203 that had the chain and was the heavier duty unit, that you want.
But that was the 1980's.
IDK what's out there today.
Whatever you choose, make sure the dang thing has all mechanical levers on it and no electronic shift controls on it, which, IMO, suck. I hate those dash switches, that tell you what you have selected, but don't tell you if you actually got what you selected.
The problem is; if you pull all that stuff off a RAM, you might as well just drive the RAM, right? The later RAMs already comes with the hi-compression 5.9M powerhouse...........
And one thing that's been bugging me, is, you have not mentioned at what elevation you will be operating. This can be a really big deal as the elevation increases, and also if the truck needs to operate in a wide elevation change. Now yur looking at power-compensation that can only be achieved with cubic inches, and generally, with EFI, that has barometric compensations for ignition and fueling..