Nissan SILVIA 200SX - S13, S14, & S15 (1991 - 2002) Front Track Control Arm Inner Bush 31.5mm - PFF46-221 Fits in the original stepped metal outer shell with a 31.5mm max. ID. Please use PFF46-201 if this measures 35mm. - NOTE: Price is for CAR KIT, NOT per bush… Powerflex price their bushes individually, but we have combined the quantities to make it simple!