Our patented Active Suspension system for rear leaf springs improves vehicle control, safety and stability without changing the ride quality. The two variable rated coil springs fit onto the rear leaf springs of pickup trucks, vans and SUV's.
Once installed, loaded tension from the RAS variable rated coil springs instantly generate energy to the rear leaf springs by holding the leaf springs in their original designed bowed position. Like powerful muscles, when strain from the load (payload, tow load or vehicle weight shifts, etc) is applied to the leaf springs the RAS stabilizers come into action immediately, absorbing the force of the load.
When cornering, RAS reduces body roll and improves stability by supporting the spring which is taking the increased load. This is especially true for SUV's and other vehicles with a high center-of-gravity. The greater the strain, the more counter assistance force from the RAS unit enabling vehicles to carry maximum loads without bottoming through.