Clocking means the angle the drop side takes. For instance a YJ tcase is a 231, but lays nearly flat, whereas an XJ tcase swings downward. But I don't see any reason it won't bolt up. They all use the same bolt pattern and you should have the same input spline count. As far as front driveline, I am not sure but I bet you could change the flanges. Might have to change the speedo gears. I think those were 3.73 ratio