There are no inner seals on a rear D44. The outer axle bearings are bathed in gear oil from the pumpkin.
cookinguy, here is a good writeup on replacing the seals on the axles. It's for a TJ but it's the same design. You'll need a new bearing and spacer ring because they'll be destroyed when you remove them. Drill and chisel the ring off, then cut the bearing off. You'll need a tall shop press to press them back on. Press them on separately too, you'll likely max out the press trying to do both.