Suncore's complete struts replace several parts of your suspension with the convenience of a single part that comes ready to install. The gas charged strut is accompanied by the bearing plate, spring seat, top mount, isolators, bumpers, and dust boots while a coil spring is compressed and built on. There is no need to assemble or to rent a spring compressor, and you will be eliminating the dangers of spring compression altogether. Suncore's rear pair comes with two complete struts for the left and right side so your rear end will perform at OEM standards or higher.