The seals are damaged and leaking, resulting in loss of lubricant, corrosion, and excessive wear.

Replace the damaged parts as necessary.

The tires, wheels, or brake drums are out of balance.

Balance the tires and wheels, preferably with a on-vehicle balancer. This method balances the entire wheel and drum assembly.

The wheel is bent or the tire is out of round.

The wheel nuts are not tightened evenly.

Replace the wheel and remount or replace the tire.

The steering linkage components are loose.

Adjust, tighten to specifications.

Repair the linkage as necessary.

The wheel is loose on the hub.

1. Inspect the wheel bolt holes for damage. Refer to Rim/Hub Bolt Check in Tires and Wheels.
2. Replace all of the wheel studs.
3. Replace the wheel if needed.

The king pin or king pin bearing are worn or loose.

1. Replace the worn parts as needed.
2. Adjust the king pin bearing.

The propeller shaft universal joint(s) are rough or defective.

This condition may be confused with steering vibration.

Repair the propeller shaft.

The engine is missing or is in a out of balance condition.

This condition may be confused with steering vibration.

1. Correct the engine miss, or repair the out of balance condition.
2. Repair the clutch, pressure plate, or harmonic balancer.

The shock absorbers are malfunctioning.

Replace the shock absorbers.

The wheel alignment is incorrect.

Align the front wheels.