94 NP242 into a 99

Im wondering whats required to fit a 94 NP242 into my 99 XJ.
I know everything else is a bolt on thing.
I can get the TC for a steel with low milage, but need to know if i can get the output to match up with my truck.

Does anybody know what i need to do to match it up???

Thanks
Kevin

driveshaft, as the pinions are a different size

Just the rear, or front too?
So i would just need to find one off something around the same year as the tranfer case.
Am i understanding this correctly?

Thanks
Kevin