Includes: â€¢ Main Oil Seal and Wiper Seal â€¢ Viton and Buna O-rings for all 2.0in. shocks with a 5/8in. Shaft â€¢ This kit may have extra O-rings; as it is designed to fit many different shocks aFe Control is proud to offer spare/replacement parts for the recently acquired Sway-A-Way line of High Performanc e Coilovers and Shock absorbers. This 2.0in. diameter seal kit includes all necessary seals and O-rings for rebuilding one shock. This kit is pre-packaged for all 2.0in. diameter shocks that have a 5/8in. shaft. (7/8in. and 1-3/8in. kits are also available). This aFe Control Suspension product is d esigned and engineered in our Corona; California facility.