Dana 30 front, Dana 35 rear starting in the 87 YJ Wrangler, continued with the TJ through till the JK. I know the D30 is in the front of the JK, but not so sure of the rear...
XJ Cherokee had a D44 as an option in 87 and some 88s with the tow package. ZJ Grand Cherokees had a D44HD which had an aluminum center section. OK for towing, but limited on gearing choices, the ring gear is nearly D60 sized though... D30s were in three flavors, High pinion, center disconeect, high pinion no disco and low pinion. ALL XJs though 99 had high pinion, the center disconnect axles went away about 92. ALL ZJ Grands were low pinion, some used CV axle shafts, some were U joints. I guess one could argue the WJ Grands were a 4th flavor, offering a 5 on 5 pattern, better brakes and over the knuckle steering, factory...
For the Wranglers, only the TJ Rubicon and the LJ Unlimited had a D44 rear. The Rubicon D44 front is a true D44 except for the D30 outers and knuckles.
Now, some of us are also Jeep guys here... I like my ZJ over an Explorer anyday. Smaller, lighter weight, and the solid front axle. I also have an Explorer, much nicer highway ride and roomier than my ZJ. I've had good and bad from the big three, and they are all excellent or all crap...