The GKTECH Z33 350z/Z34 370z OEM rear upper camber arm spherical upgrade bearing replacements are designed to replace the factory OEM rubber bush. We have chosen to use a common (COM10T) spherical bearing which is PTFE lined and self lubricating for increased longevity and to increase the misalignment we have produced high misalignment spacers to ensure the required misalignment is reached. For installation, simply press out the OEM bush and press the replacement unit in it's place. Sold as a set of 4 Vehicle Compatibility: - Nissan Z33 350z - Nissan V35 Skyline - Nissan Z34 370z - Nissan V36 Skyline