I'm looking at some re-gearing options. One thing I'm noticing is that ring and pinion sets for JK and TJ Jeeps do not cross reference as fitting Intermediate CJs (or International Scouts for that matter, which do cross reference with 72-75 Jeeps). Seems to me a Dana 44 is a Dana 44. Is the pinion shaft shorter, the ring wider on later models? I know there are differences in spline counts on carrier/axles and different diameters for bearings. But it seems like this shouldn't matter for the ring a pinion. Any experts?