Timbren 2017 Ford F-150 Raptor Rear Active Off Road Bumpstops - ABSFR150RB

The Active Off-Road Bumpstops offer off-road enthusiasts greater control over their vehicles' suspension travel. Using progressive-rate springs means, that instead of a hard stop at the end of axle travel the axle energy will be absorbed when bottoming-out producing smooth, predictable and quiet axle engagement and disengagement.
Installation Instructions