The 38mm or 34mm axle bolt not sure which one, usually comes off very easily, it's the bearing/hub assembly which is the hard part because it's made of steel and the knuckle it sits in is made of white metal/aluminum. The easiest way is to have a
J 28733-B Front Hub Spindle Remover. I was able to remove mine by heating the knuckle with an acetyline torch then prying and tapping it apart. The bearing/hub assembly is one piece and an after market chinese replacement cost me $85. I think Autozone will lend you the tool for free, check the link I attached for the halfshaft removal procedure.
http://www.autozone.com/az/cds/en_us...rInfoPages.htm