Visually inspect the ball joint dust boots and steering gear protective covers for cracks, tears, and abrasions. Any wear on these parts will result in loss of lubricant, allowing dirt and water to enter, which will result in rapid wear of the ball joints or steering gear (see Fig. 1.15-1.17).
On vehicles with power steering, check the condition of the hoses and their connections.
Rock the wheel vertically and horizontally to determine the play. If there is play, determine its source. Continue rocking the wheel while an assistant presses the foot brake. If the play disappears or decreases significantly, the hub bearings are probably worn. If the play does not change when the brake pedal is pressed, then there is wear in the suspension elements.
If there is play in the horizontal plane, the ball joints of the steering rod may be worn out.