Includes 4 thrust sheets & 4 metal washer sheets (1 kit for 2 springs). Improve coilover performance and reduce unwanted spring noise with Swift Thrust Sheets. These proprietary self lubricating sheets will allow your coilover springs to smoothly rotate around the perch under compression. This enables the load on the spring to be more evenly distributed easing the pre-load and reducing the noise created under spring compression. Swift Thrust Sheets will work for most coilover systems and are offered in 60mm, 65mm and 70mm applications. Each kit comes with 4 self lubricating thrust sheets and 4 stainless steel shims.