Ford B-Max (2012-2017) Rear Spring Upper Isolator Pad - PFR19-2030 PFR19-2030 is designed to eliminate creaks and squeaks from the rear springs. We have used our durable Purple 80 Shore A material to target reliability issues of the original part, since the softer OE specified foam quickly deteriorates, even on newer vehicles. - NOTE: Price is for CAR KIT, NOT per bush… Powerflex price their bushes individually, but we have combined the quantities to make it simple!