I've changed both my axles and have had to take them out for different jobs before, it's not that big of a deal. The hardest part is getting the axle nut off. After you get that off, you will need to take off a few more bolts and it will slide right out. I would suggest going to a shop or getting a buddy that has done it before to help out. It's not something you want to mess up. All car work is basically the same though, take the parts apart, remove old one, insert new one, put parts back together (for the most part). But there is always something that happens that makes you have to work for way longer then you should and swear more then a biker.
