Black Diamond suspension products are specifically designed to perform in the most demanding off road conditions. We also take pride in our products' on road performance and ride characteristics. We ensure an extraordinarily high level of product quality by using computer-modeled lift system brackets and hardware that is first laser cut, then welded-out in CNC machined assembly fixtures. Black Diamond coil and leaf springs are designed with durability and drivability in mind. Most Black Diamond leaf springs feature double wrapped spring eyes (military wraps) and polyurethane eye bushings. Also, polyethylene anti-friction pads positioned between each leaf plate are standard on most applications. With a Black Diamond performance suspension you'll enjoy superior offroad articulation, and a comfortable ride in a suspension package that will last a lifetime... guaranteed.