Wow I can't believe i just found this post.  Good timing since i was going to buy the support bushing kit from zukination which costs 400$ I'm surprised out of all the articles i read about the leaky passenger side of the front diff i never found out about this bushing.  Mine is wallowed out  bad that the snap ring came off and went through the gears a few times but fortunately i was able to fish it out through the drainage hole. I think/hope it can be salvaged.