Axle is simple.
Just pop the diff cover.
remove the cross pin retaining bolt.
Remove cross pin.
push in on the axle shafts at the lug area. Spin a little. Then look in the diff and remove the C clips.
Once they are removed pull axle out.
If your explorer axle had disk brakes there will be a smaller set of drum brakes.
To remove those take the little clips off the pointy metal spears(they look like spears to me).
Then the bottom spring and adjuster.
Then pry the shoes off. Those top 2 springs are a pain, I just left them on and removed them as a
The backing plate is held on with 4 bolts that are simple once all the stuff is out of way.
I will try my best to only answer what you ask.