Powerflex Road Series Car: Audi - A4 Avant Quattro (1995-2001) description: Rear Upper Arm Inner Bush (Pressed Arm) purchased parts package: 4 installation location: rear notice: Fits pressed steel arms only. For cast steel arms, use PFR3-212 Fits pressed steel arms only. For cast steel arms, use PFR3-212 Diagram reference: 9 Part no.: PFR3-209