this is pretty simple..it involves backing the outer nut off to expose a c clip that will need to be removed after the c clip is removed the lock nut will slide off the end of the axle..then the axle will slide out the end of the carrier.
The rear axle removal is rather simple. The axle nut that holds it on is a reverse thread, make sure you are turning it in the right direction. Put your quad in gear to help hold the axle from turning.
I read DirtWheels Magazine and in the Nov 2009 they have a great tech going over how to remove an axle. try www.dirtwheelsmag.com
look through the nov 2009 issue and it will give you pics and tips
Its just a option. We should be able to help you.