Powerflex Polyurethane Bush kit for CADILLAC BLS (2005 - 2010) Rear Upper Arm Outer Bush - PFR80-1211BLK - Fits arms using a spherical type bush 47mm in diameter, for arms with a 38mm rubber bush use PFR80-1217 - Bush Size: 47mm - 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!