So my rear has been making a clicking noise for a while now. Long story short, the cup is chewed up inside. I think I'm supposed to get 5382x for the revo I bar inside to reinforce it, but can I use the upgraded erevo diff cup with that? Stock p4de is 5381 and erevo one is 3978. It looks like there are some metal tabs that reinforce it as well. I do not want metal cups, just stock plastic ones. Thanks guys!
I'd like to get this back together today also, so any quick help is appreciated!!