From what I have been able to glean:
For any Mopar 8.25 rear end housing
that came with a 2.45 gear or less;
the pinion centerline has been offset away from the ring-gear, to work with the rather large pinion.
This means that, these housings ONLY work with similarly sized pinions, which means, 2.45s or smaller numbers, ie 2.20s
If you want to run 2.76 to 4.56 and beyond, then you need the housing that accepts them, which means; the standard one, which means, not the 2.45/2.20 one.
I know NOTHING about installing Jeep gears into a Mopar housing.
