361 Copyright by Goodheart-Willcox Co., Inc. Aft er studying this chapter, you will be able to: • Explain the diff erence between two-wheel and four-wheel alignment. • Identify types of alignment equipment. • Explain pre-alignment vehicle checks. • Describe rack, machine, and vehicle pre-alignment setup. • Explain wheel alignment checking procedures. • Identify alignment adjustment devices. • Explain wheel alignment adjusting procedures. • Identify the purpose of post-alignment checks and road testing. • Explain why frame straightening must be done by a body shop. alignment head alignment rack alignment specifi cations camber split camber spread caster split caster spread cross camber cross caster curb weight eccentric bushing frame repair fi xture full-contact shim runout compensation device wheel cover lock wheel lock key Wheel Alignment Procedures Chapter 17 Technical Terms