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Old 12-30-2009, 10:54 AM   #82 (permalink)
bensenvill
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Frank, if your putting on larger pulleys, you are also putting in a longer belt, you are NOT increasing the tension of the belt. (the purpose of the idler pulleys is to take in that extra slack, keeping a constant tension).

Overdrive pulleys are typically around 10% larger (it entirely depends on clearances), and almost always milled out of aluminum, so they are considerably lighter than the stock thats being replaced.
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