FJ40/60/62/70 ‘8/1980-1990 Anti-Inversion Greaseable Shackle – Left Rear Add an ounce of prevention with a set of anti inversion shackles. These are built with an extra pin that will contact the frame in certain circumstances during axle articulation while driving off road. This stops the shackle from becoming stuck over center, which can damage suspension components and leave your cruiser stranded on the trail. They’re also greaseable, which helps prolong bushing life.