Powerflex Polyurethane Bush kit for Land Rover Discovery 3 (2004 - 2009) Front Upper Wishbone Front Bush - PFF32-406 - This part replaces OE number: RBX500301 and fits into the front position of the front upper wishbone. These parts feature moulded in zinc coated steel plating to suit pressed steel arms found on Discovery 3 and 4 vehicles. For cast arms found on Range Rover Sport (2005-2013) use PFF32-408. - 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!