Fox 2.5 Factory Race Series Internal Bypass Front and Rear (Set) for 2015+Mercedes Sprinter 4x4, AWDFox 2. 5 Factory Race Series Internal Bypass Front Strut and Rear Shock Set. 2. 5 zinc nickel plated steel body Factory Race Series internal bypass damping External reservoir with DSC EVO adjuster High and low speed compression adjustability Full load bearing replacement design The Strut Upper Anti Rotation Washer Kit is included with this kit A Wheel Spacer 14mm+ will be required to ensure proper clearance on the front strut ADD the mini leaf pack