Check the axle ends of the ebrake cables to make sure they're the same. You'll also need larger ubolts.
Yep.
The e-brake cables should be the same if the jeep is a '97 or newer.
The newer 8.25 rears have 29spline shafts, so stay with those.
Earlier 8.25's had 27spline shafts.
(not sure what the transition year was- '96, I think- but for sure '97 & up is good)
You can use a 8.25 out of any '97 to '01 XJ. They are all the same. They are NOT equipped for ABS, but I didn't let that stop me! I hate ABS on an XJ anyway.
D35 models had ABS, 8.25 models did not.
As you & Bounty Hunter mentioned, that's about it.
Larger u-bolts, (3" gap) and it should bolt right in.
Snag the rear driveshaft from the donor jeep if it has the same t-case and trans as yours.
If it's lifted, a SYE & CV driveshaft conversion might be the way to go.
I just pulled the big fuse on my ABS and kissed it goodbye, but that's your choice on how to handle that...