If you have a light truck and you use it off road, don't depend on the shock absorbers and the springs that come from the factory. The bumbs and holes in off road terrain are often too much for the springs and shocks and can therefore result in damage to your car. If you are looking for a light truck aftermarket suspension, Rancho shocks are one of the best brands you can go with. Rancho shocks are better for off road use because they are a "tri tube" rather than a "twin tube" design. This design offers more positions for the shocks and a quick adjusting shock absorption.