Our TRD coil-overs flex four-position adjustability for rebound only. The user can adjust the valving of the shock and tune the ride and handling of the units. They are delivered set at No. 2, which provides 463 lbs-ft of dampening in front and 178 lbs-ft in the back. Setting No. 1 is about 20-percent softer, while No. 3 is 20-percent stiffer.