2 variable-rate coils designed to automatically aid rear leaf springs come into operation when needed — the more strain on leaf spring, the more these kits aid suspension
Stops sway and reduces body roll on corners. Lifting force is applied to the side, countering the downward force during body roll. Helps keep truck closer to level in U-turns. Easy bolt-on installation. Note: Do not exceed GVW rating of truck. Cannot be used on vehicles with factory overload springs.