I've been corresponding with a guy on Craigs List who has a D30 from a 95 XJ (actually it's still in there). Should be a 3.55, as it's in a 4.0L Jeep with an automatic trans.
I was thinking of grabbing it to replace my disco axle in my 88, but I have other priorities at the moment. So if you want his email PM me or look it up on SF Bay Craigs List. He's asking $250 including brakes & calipers.