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Bolt On Shackle Reversal System

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This Jeep YJ is shown with a bolt-on shackle reversal system. While this arrangement works well in theory, it's not the end-all-be-all method of improving ride quality with leaf springs. Shackle-reversals reduce vehicle approach angle and can cause nose-diving during braking and other handling issues. They do eliminate some of the roughness of direct front hits to the tires/suspension since the rear of the springs absorbs the hit rather than the front of the spring. In our opinion, however, shackle reversals are best employed in longer wheelbase rigs where most of the negative effects aren't as noticeable as they are in short wheelbase 4x4s.

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