FOX SLS Coil Rear Shock Spring - 550 lb. x 2.65" / 67mm Stroke, Orange

Internal Diameter: 35 mm/1.385" Lower un-sprung weight of the SLS coil spring improves performance compared to the FOX standard coil spring The 35 mm/1 385" Internal diameter also fits DVO, MRP and X-Fusion shocks Internal Diameter: 35 mm/1You may also like Fox 2021+ Ford F-150 4WD 2in Lift Front Performance Elite Series 2.5 Reservoir Shocks - Adjustable.