The Ford patent shows a bolt-on kit to add an extra rear axle to the Ford F-150 pickup. This second rear axle is designed to handle more payload for the full-size truck. This patent is targeting a non ...

Powered trailer axles are unusual, even in Europe where they do things differently with trucks than what we do here in North America. That’s why a new product from SAF-Holland, a hydraulically driven ...

Tandem axles are pretty much only good when you need to tow a whole lot. Otherwise, they just add weight. That might be why this 1971 Buick Electra 225 has one, as some rumors indicate it was a failed ...

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 ...