Just did my front hub and thought I'd write a little bit about it in case someone else was thinking of doing theirs. The job was pretty easy, took about a half an hour.
Tools you will need, 30mm deep well socket, T55 socket, Allen socket, forget the size, it is for the brakes.
Take off hubcap
Loosen axle nut
Loosen lugnuts
Jack car up
Remove lugnuts
Remove tire
Remove front brake caliper and set on something so it isn't hanging by the brake hose
Remove axle nut
Tap Driveshaft end with rubber mallet till it breaks free and is loose
Loosen the three T55 bolts holding the hub on
Pound the old hub out with a hammer
Put the new hub on and reverse directions for installation
Axle nut should be torqued to 150 foot pounds.
If you have a howling sound from the front it is probably your hub needing replaced.
Hope this helps.