Side bearing race used on the following 2002-2006 Ford vehicles: 2005-2006 E-150; 2003-2006 Expedition; 2004-2006 F-150; 2002-2003 Lincoln Blackwood; 2006 Lincoln Mark LT; 2003-2006 Lincoln Navigator. This part has been discontinued from Ford. Part number FL3Z-4222-AA. 2 required per vehicle.