Powerflex PFR80-1517 Rear Trailing Arm BushPowerflex PFR80 1517 Rear Trailing Arm Bush Part Number: PFR80 1517 Product Notes (if required): PFR80 1517 Rear Trailing Arm Bush rectifies the commonly failed rear trailing arm bush due to twisting. Flexibility and articulation is also maintained through suspension travel from the use of our dual compound design. Size (if specified): N A