Attention! Hang and remove the rear wheel. Removing the brake drum (see Replacing the rear brake pads).
Using a hammer, knock out the damaged stud from the axle shaft flange.
We insert a new stud into the flange hole, orienting it so that the flat of the stud head faces the cylindrical protrusion of the axle shaft.
We put a bushing on the stud and bait the wheel nut with the reverse side.
Tightening the nut, press the stud.