Wheel alignment basics

Consider this a primer in ride height, steering and suspension angles, and types of adjustment for the alignment apprentice.

Wheel alignment is the most critical part of collision repair. Achieving proper specs on a vehicle's four wheels is, in many cases, the best proof the body and chassis have been restored accurately. Any deviation from manufacturer's specs indicates something is wrong with the repair.Vehicle safety and your customers' lives are at stake, so pay close attention as we discuss toe, camber, caster, steering axis inclination (SAI), scrub radius and the need for four-wheel alignments.

Even though this article provides a useful overview of alignment theory, …