Rear Upper Link Arm Inner/Outer Bush

On some early 997 models (pre-2006) there is no support on the outside face of the link arm to hub bush. For these models use 4 x PFR57-508 for the link arm to hub bushes & 4 x PFR57-509 for the link arm to subframe bush. For hub carriers with support either side of the bush, use 8 x PFR57-509.