The official Ford method is to remove the 4 bolts at the rear, which will allow you to remove the drum complete with stub axle. This enables you to change the shoes and clean out the drum without having to undo the hub nut and disturb the bearing.
The downside of this is that the 4 bolts can sometimes be rusted in and difficult to remove.
If you do remove the hub nut, you will need a torque wrench that goes to 235 Nm to tighten it back up and you might want to consider changing the bearings if you've done a lot of miles.