Ok great, I'm assuming you need to remove the driveshaft flange first? The only reason why I ask is I've seen photos of the transfer case with the flange and shaft still in place.
The bext question is where to get the shaft from? CTS wouldn't sell one unless the gearbox went to them and they fitted (which I can understand) just means I have to take the gearbox out which I'm trying to avoid and the journey to them!!