Powerflex Polyurethane Bush kit for Vauxhall / Opel ASTRA MODELS Front Wishbone Inner Bush (Rear) - PFF80-304 - Fits Astra MK1 Models Only. - 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!