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Old 03-30-2011, 02:37 PM   #11
Andy@Livernois
 
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Drives: 1987 Buick Regal Turbo-T
Join Date: Sep 2009
Location: Grand Blanc, MI/Dearborn Heights, MI
Posts: 452
Quote:
Originally Posted by G8GT4now View Post
Why do you need an idler pulley if you are only changing the upper pulley from 3.0 to 2.55? Are you reusing the stock belt?
While technically not required, anytime you can increase the idler size will help with belt wrap and reduce the possibility of slippage on these systems.
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