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IRS hopping
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<blockquote data-quote="ac427cobra" data-source="post: 7496089" data-attributes="member: 6247"><p>Eliminating wheel hop is only part of the equation. Sure it's a good thing to eliminate it but that is just the beginning. Tires, springs and shocks are a nice start but certainly are nowhere near the complete and total answer. </p><p></p><p>For instance, reducing or eliminating wheel hop will not protect your differential from leaking, cracking or breaking the rear cover. The differential needs to be stabilized and reinforced to prevent that. </p><p></p><p>Eliminating wheel hop is not addressing the severe range of motion the control arms are able to travel with the soft, compliant factory rubber bushings they are mounted in. As well as the subframe mounted to the chassis with rubber bushings. All of these areas are working against you when you try to apply a lot of power down. </p><p></p><p>I recently disassembled an IRS and made a pretty gruesome discovery. The differential housing had a considerable amount of play in it. So I captured it on video here:</p><p></p><p></p><p></p><p><a href="http://fulltiltboogieracing.com/Videos/Diff%20Mounts%20LG.mpg" target="_blank">Differential mounted rubber as delivered from the factory</a></p><p></p><p>Just some food for thought!</p><p></p><p>:thumbsup::coolman::beer:</p></blockquote><p></p>
[QUOTE="ac427cobra, post: 7496089, member: 6247"] Eliminating wheel hop is only part of the equation. Sure it's a good thing to eliminate it but that is just the beginning. Tires, springs and shocks are a nice start but certainly are nowhere near the complete and total answer. For instance, reducing or eliminating wheel hop will not protect your differential from leaking, cracking or breaking the rear cover. The differential needs to be stabilized and reinforced to prevent that. Eliminating wheel hop is not addressing the severe range of motion the control arms are able to travel with the soft, compliant factory rubber bushings they are mounted in. As well as the subframe mounted to the chassis with rubber bushings. All of these areas are working against you when you try to apply a lot of power down. I recently disassembled an IRS and made a pretty gruesome discovery. The differential housing had a considerable amount of play in it. So I captured it on video here: [URL="http://fulltiltboogieracing.com/Videos/Diff%20Mounts%20LG.mpg"]Differential mounted rubber as delivered from the factory[/URL] Just some food for thought! :thumbsup::coolman::beer: [/QUOTE]
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