Tandem skew, or scrub angle, occurs when tandem axles are not parallel to one another. Non-parallel axles cause all the axles to work against each other. The steer axle must be turned to compensate ...

Have you ever wondered why some semi trucks have one set of wheels and others have two sets crammed together? That's because some semis use a single axle while others have tandem axles, but why is it ...