I'm not sure about any of the other axles on there, but that Dana 44 is clocked sideways, so if you were actually looking at one under your cherokee, it would be turned left 90 degrees. Just so you know...
Under a '91, you probably have a Dana 35... the D44 was only used under some XJ's in the late 80's and also on some with the towing package (mine's an 87 and has a factory D44, but not the towing package, just the offroad package).