There are a number of steps, I can't say how long it might take, it depends to some extent on what tools you have and if you have a good place to work on it. Matrixowners has a link to a softcopy of the 2003 matrix repair manual, and all of the AWD parts in it should apply to VIbes as well, the link is
http://www.megaupload.com/?d=RK4K5SVS. I attached a single pdf out of that set, it lists the steps to get to the seal, but links to other pdfs for the procedures for those steps. THis will give you an idea of whats involved, to get the full info download the whole manual set.
Attached files x040001.pdf (45.3 KB)