Inspect for mismatched or uneven tires.

Replace the tires.

Inspect for a broken or a sagging spring.

Replace the spring.

Inspect for a radial tire lateral force.

Check the wheel alignment. Switch the tire and wheel assemblies. Replace the tires as needed.

Check the front wheel alignment.

Align the front wheels.

Inspect for an off-center steering gear.

Reseat the pinion valve assembly. Replace the pinion valve assembly as needed.

Inspect for front brake dragging.

Adjust the front brakes.