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Those with the 624 SC

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Has anyone else having issues with their Supercharger belt either tearing or slipping? I noticed not too long after getting my 2014, that the Supercharger belt was tearing due to I believe an alignment issue or an idler pulley issue. I think this was the result of Shelby switching to a smaller pulley when they upgraded to the 624 upgrade. Someone mentioned switching from the 76mm idler pulleys to a 100mm and 90mm pulleys. The problem is that nobody carries the 6 rib idler pulleys in those sizes any longer. 

Maybe adding a shim to one or both pulleys or upgrading to a 10 rib setup may be a solution. Shelby America hasn't been much help either, unfortunately. 

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