Nissan Skyline R34 4WD Incl. GT-R & 25GT4 (1998 - 2002) Rear Subframe Bush Insert - PFR46-215 PFR46-215 is an insert to be used with the original rubber bush. For a full replacement bush, please use PFR46-212. - NOTE: Price is for CAR KIT, NOT per bush… Powerflex price their bushes individually, but we have combined the quantities to make it simple!