Sway-A-Way 2.5 IN Rear Shock Kit w/ Piggy Back Reservoir for OE Ride Height Ford F-150 15-17 V6-3.5L(tt)/V8-5.0L 4WDaFe Control is proud to introduce the recently acquired Sway-A-Way line of High Performance replacement shock absorbers for the 2015-17 Ford F-150 4wd These 2.5" diameter triple bypass shocks feature all the same race winning engineering and components that have 20+ years of testing into a specifically designed kit that will bolt directly into your daily driven vehicle. This kit has 3 externally adjustable bypass tubes and offers superior off road damping curves without sacrificing any on road comfort or handling. These rear shocks are 100% designed and built in the USA that feature bright zinc plated steel cylinder bodies and CNC machined aluminum components. This package is designed as a direct fit application and requires no modifications to the vehicle. *This aFe Control Suspension product is designed and engineered in our Corona, California facility.