Welcome to the forums. First, unbolt the brake drum and remove it. Loosen the axle nut and remove the hub. Unbolt and remove the bottom ball joint from the knuckle. The bottom of the knuckle should lean out enough to push the end of the axle back through the hub. You may have to screw the nut back on and tap it with a hammer to get it started back through. Use a screwdriver or pry bar between the inboard joint of the axle and diff to pry the axle out. Hold both ends of the axle as you pull it out, don't let it ride on the diff seal as it comes out, so you don't damage the diff seal.
It will probably be easier to loosen the axle nut before you take the tire off, unless you have an impact wrench.
ADDED: Be careful not to break the diff when prying the axle out.
Most 4-wheeler problems are caused by a loose nut connecting the handlebars and the seat!!
You only need two tools in life -- WD-40 and duct tape. If it doesn't move and should, use the WD-40. If it shouldn't move and does, use the duct tape.
Last edited by Helmut; 09-28-2010 at 03:38 PM.