Remove the rear wheel.
Remove the brake drum - may require a rap with a hammer.
Remove grease cap from hub by tapping with hammer and flat
screwdriver.
Remove the hub nut (1 3/16" or 1 1/4")
Hub assembly should slide off the axle.
Hub cost $101 plus tax in Canada, US price was $57 on line.
Reassemble with new hub assembly.
Hub nut torque = 160 ft lbs