Powerflex Polyurethane Bush kit for Audi 100 Quattro inc Avant Typ 44 (C3) (10/84-11/90) Rear Diff Rear Mounting Bush - PFR85-1020 - - Bush Size: - PRICE IS PER CAR KIT, NOT per bush. Powerflex usually price their bushes singly, but we have combined the QTY and price to keep it simple for you!