And , er just realizing that I have come straight off the MT2 thread, I just realized also that you are talking about the Rush...Same deal though. And I would advise this anyway as your diff would last twice as long in the overall wear'n'tear side of things. BUt you would have to also replace other parts aswell so that you dont damage them aswell. Its like a chain reaction really and the product departments managers and dealer REALLY know this. [:-]