aFe Control is proud to offer sparereplacement parts for the recently acquired Sway - A - Way line of High Performance Coilovers and Shock absorbers. This Seal Head Assembly is for all 2.5 Shocks that have a 78 shaft. This kit includes the seal head, retainer cap, the DU bushing, seals and o - rings all come pre - installed, along with new allen bolts, and the retaining ring.