BrightDrop electric delivery vans (above) as well as Chevrolet Silverado/GMC Sierra pickups from General Motors Co. feature North America’s first composite tension leaf springs (TLS) with progressive ...

It is said that the leaf-spring suspension is the oldest suspension used for automobiles. The leaf-spring system was used more recently in '70s production cars, some of which are still in service ...

Leaf springs are pretty common on custom 4x4s, even though coil and coilover combinations are becoming quite popular. Coils and coilovers can be tempting, but don't sell the old-fashioned leaf-spring ...

Leaf springs were a hot new technology several years ago, and by "several years," we mean the Bronze Age. Vehicles have evolved somewhat since the chariot, what with trotting and biting horses being ...

Longtime readers will definitely recognize our '04 Ford Super Duty project. Over the last few years, we've updated the 6.0L Power Stroke engine, added a stellar audio system, filled the bed area with ...