Vauxhall / Opel Cavalier GSi/Calibra 4WD, Vectra A (1989-1995) Rear Trailing Arm Bush - PFR80-440MLK-BLK This is a Rear eccentric bush that allows adjustment of the trailing arm geometry for lowered vehicles. If fitting these, order 2 x PFR80-440BLK's and 2 x PFR80-440MLK-BLK's. - NOTE: Price is for CAR KIT, NOT per bush… Powerflex price their bushes individually, but we have combined the quantities to make it simple!