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 ...

Classic Mopars were considered ahead of their time in many ways, thanks to superb engineering and a dedication by the Chrysler Corporation to building the best performance cars of the muscle car era.

Rassini’s 1+C Hybrid leaf spring features a single steel parabolic main plate and a flat glass fiber composite helper plate to provide suspension on the rear wheels of the Ford F-150 pickup truck.

Sport Truck readers may recognize our Reverse Sleeper project (Feb. '05), where we enhanced off-road prowess and visual appeal to an otherwise mundane '00 GMC Sierra pickup. Now, it's nearly six ...