Bilstein B8 5100 (Steering Damper) is designed as an upgrade to factory steering dampers on trucks and SUVs. Utilizing our proven design, these steering dampers are able to dampen minute movements in the steering and reduce steering, vibrations that naturally occur, especially in older vehicles. These steering dampers are zinc coated for resistance to harsh elements and match to all B8 5100 series products. B8 5100 (Steering Damper) will offer a significant improvement in steering, handling and comfort.They are zinc coated for resistance to harsh elements and match other Bilstein B8 5100 series shocks. You will notice a substantial improvements in steering, handling and comfort.