Audi A4 / S4 / RS4 A4 / S4 / RS4 B5 (1995-2001) Gearbox Support Bush Insert - PFR3-126BLK PFR3-126BLK is manufactured from our Black 95ShA material and fills the voids in the OE rubber mount to restrict movement, providing greater control at the front of the differential and increasing mount longevity for a part no longer available from Audi. - NOTE: Price is for CAR KIT, NOT per bush… Powerflex price their bushes individually, but we have combined the quantities to make it simple!