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