Precise wheel alignment can only be accomplished when the tires, the suspension, and the steering are in good condition. Uneven tire wear, different size tires, or worn suspension and steering parts all affect wheel alignment. Reputable wheel alignment technicians will always inspect the suspension and steering for worn parts before an alignment, and will recommend that any necessary repairs be made before proceeding. A wheel alignment on a car with excessively worn suspension and steering parts is a complete waste of time and money.