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freednighthawk · 05-13-2008, 04:10 AM

Actualy, the underdrive pulley is designed to make the accessories spin slower, not faster. Yes, replacing the UD pulley with the stock type can make the lights stop dimming, or at least decrease it, because the alternator will be spinning at the speed it was designed for. However, I don't think it will help the longevity of it any.

05-13-2008, 04:10 AM	#2 (permalink)
freednighthawk NECO Member Join Date: Feb 2008 Location: Salt Lake City Utah Posts: 700	Re: Underdrive Pulley Killing Alternator? Actualy, the underdrive pulley is designed to make the accessories spin slower, not faster. Yes, replacing the UD pulley with the stock type can make the lights stop dimming, or at least decrease it, because the alternator will be spinning at the speed it was designed for. However, I don't think it will help the longevity of it any. __________________ Bone stock 99 Rio Red ATX Cougar... Bet you havent seen one of these before :P Mostly Stock Charcoal Metalic 89 S10 Blazer