Most that don't have a few years model A experience will notice the loose .ness and figure that it is caused by internal wear . the weight of the rear end of the car is carried by the hub bearing and the rear axle housing bearing race . In time the rear axle housing bearing race race will wear on the bottom and can cause problems with rear brake adjustment . If the rear brakes are adjusted with the rear axle on stands , sometimes the brakes can be too tight and drag when the car is taken off the stands . This drag is usually caused by wear in the outer hub bearing and mostly rear axle housing bearing races . This wear causes the brake shoes to get out of center and drag ..