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Discussion Starter #1
I think there used to possibly be a post about this on here before. A lightened crank pulley is offered for the cobalts but isn't our crank pulley actually a harmonic balancer? So Lightening it would throw this off and cause engine damage? Anyone experience with this.
 

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The JBP crankshaft pully is designed specifically for the LSJ and will cause no problems.
I will be using one on my car.

I have an L61 not an LSJ
 

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Discussion Starter #5
gotcha thanks man
 

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The ecotech uses an integral pulley/dampener. Replacing it with just a pulley will have adverse negitive affect on your engines longevity.
 
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