The 98541A152 OEM style replacement ball joints have been made by us as an OEM replacement ball joint. Vehicle Compatibility: - Nissan S13 240sx- Nissan S13 Silvia- Nissan C33 Laurel- Nissan A31 Cefiro- Nissan Skyline R32 GTS/GTS-T - Nissan 300ZX Z32NOTE: Sold INDIVIDUALLYWe also carry spare boots to suit which can be seen by clicking HERE FRONT REAR Nissan S13 240sx BJ274 98541A152 Nissan S13 Silvia BJ274 98541A152 Nissan C33 Laurel BJ274 98541A152 Nissan A31 Cefiro BJ274 98541A152 Nissan S14 240sx BJ291 BJ291 Nissan S14 Silvia BJ291 BJ291 Nissan S15 Silvia BJ291 BJ291 Nissan Skyline R32 GTS/GTS-T BJ291 98541A152 Nissan Skyline R33 GTS/GTS25-T BJ291 BJ291 Nissan Skyline R34 GT/GT-T BJ291 BJ291 Nissan Z33 350z/G35 40015-AL550-M16 - Nissan 300ZX Z32 BJ291 98541A152 For the rear knuckles only, I am running S14 hubs and knuckles on my S13 which has S13 rear lower control arms, which rear ball joint do I purchase? The ball joints are lower control arm specific, irrespective of what knuckle you are running as all the S/R rear knuckle tapers are the same for the rear only, the front is a different ball game.