This hydraulic bump stop system?was developed as an OEM replacement, making installation a simple and straightforward bolt-on affair. With no major cutting, welding, or fabrication required you have the option to return the vehicle back to its stock form. The factory rubber bump stops have a limited energy absorption capacity and a rapid release of this energy upon rebound * This translates into a harsh ride and poor handling in rough terrain. ICON hydraulic bump stops absorb and release this energy in a much more controlled manner due to the digressive rebound piston valving, resulting in?predictable handling and vehicle dynamics. 2007-2021 TOYOTA TUNDRA REAR HYDRAULIC BUMP STOP SYSTEM