Test-Trak always conducts 4-wheel alignments because monitoring of tyre wear is always part of any on-road test. We have adopted the race car practice of using vehicle mounted bars to create parallel string lines. We manufacture bars that utilise number plate mounts.

There is a version where the bars fold (like a pool cue) to make them easy to transport. Performing a wheel alignment from first principals is more reliable than electronic machines and can be performed easily in locations remote from the workshop.