BMW 3 Series E46 (1999 - 2006) Rear Trailing Arm Bush - PFR5-3608BLK PFR5-3608 uses our Black Series 95A material for ultimate chassis control and durability for the rear trailing arm bush, a common failure point on many BMW vehicles. - NOTE: Price is for CAR KIT, NOT per bush… Powerflex price their bushes individually, but we have combined the quantities to make it simple!