I had the same on both sides and checked around and every body has the same even a youtube vid of how the hubs mate together and wear out so.
I started to pull my axels and see if the diff hubs were loose and what could I do and my axels were welded to the hubs. No way of pulling them out, I even put an pry bar on one and no joy.
Called three shops and they all said oh sure we've seen that, no chance of saving anything. So I'm replacing the diff now with RCV pro II axels to see if it hangs in there more than 1600 miles.
Moral of the story damn if you do and hell on the trail if you don't.
Good luck.