Cam Phaser Holding Tool: Make easy camshaft or cam phaser changes on your vehicle without losing chain tension and without removing the timing cover. Works for Ford Rotunda 5.4L 4.6L 3V; Expedition 5.4L 3V 2005-2011; Explorer 4.6L 3V 2006-2010; F-150 5.4L 3V 2004-2010; F-250/350/450/550 5.4L 3V 2005-2009; Mark LT 5.4L 3V 2006-2008; Mountaineer 4.6L 3V 2006-2010.