this is the fix LINGENFELTER SUPERCHARGER ISOLATOR COUPLING LS9 LSA ENGINE 2009-2014 gm will most likely just install a new blower with the same spring set up,and it will happen again,the funny thing is that on the ctsv they have started installing the solid isolator from the factory or at least i read that,but not the ZL1,GM does not allow their techs to install the part which is dumb since its a simple swap to do ...go find a good tuner shop and have the aftermarket fix done...as its been said this has been covered at least 50 times...good luck
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