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2009 CTS
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Discussion Starter #1
Hi All...I'm trying to get some information on the stock supercharger pulley for the CTS-V. I (believe) they have a 2.95" diameter, but I've also hear 2 7/8" (2.875") and 3.06" on this forum. Does anyone know if 2.95" is the correct value? Also, I'm looking for anyone who has specific information on the interference fit bore dimensions of the stock pulley. Does anyone have access to an engineering drawing of the stock pulley, or an aftermarket one showing the bore tolerances/diameters?

Thanks!
 
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