Anyone here have a rear diff replaced at the factory? If so, how long did it take to get it? Do they keep them in stock locally, or do they ship them straight from Oz? Reason being, I am taking the goat in Tuesday to be checked out due to some serious sounding noise, and am just wondering how long I will be without Monica. Thanks in advance. I'm also planning on getting Amsoil rear diff fluid so they can put that right in.