No, I don't think so. The cases are the same, and you can swap the tailpieces, but the output shafts are different. It is splined on the 4x4, but the 2wd also has a threaded section on the end of the shaft for the nut that holds the yoke on. Not sure if the splines are even the same - I've worked on both, but not side by side...
If they are, you could have the threaded part machined off, but you'd have to tear it down. If you tore both down, you can swap shafts, too, but I don't think there's an easy way out.
Andy