well when i went to pick up my new trans from a guy i found out he was a tech at a mitsu dealer so i showed him the trans. He said he's seen it before and its because of doing burn outs and one wheel peels at take off. He said the pin inside the diff gets overheated and over time becomes brittel and then it finally snaps and yea severything goes flying from there. Kinda kool to me lol sucked at the time but awsome now that i look at it lol.