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.

Composite leaf springs are not new to the automotive industry. In fact, the leaf spring itself dates back to the horse-drawn carriage. By design, leaf springs absorb vertical vibrations caused by ...

Outdoorsmen use their pickups for more than just weekend romps wheelin' over rugged backroads, transfer cases locked in low-range, and beds empty. More often than not we use our rigs for both work and ...