Forrest is right, you cannot remove the diff by simply by just removing the side covers.
But you can remove the eight Allen screws that hold the differential assembly together. Once these are removed you can work the hardware out.
Be sure that you keep everything in it’s EXACT orientation and reassemble the system EXACTLY as it came apart, and I mean EXACTLY.
See my thread on 5357, about the fourth page, to see my journey. It can be done....