Belt Part #'s??
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Dayco makes nice AC idler replacements and the main idler and tensioner are widely available. (I purchased a nice set from Goodyear along with their Gatorback belts.)
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You may not be able to find the Dayco pulley numbers in a normal lookup, but there is a thread on this site that gives the model number.
- If the noise is not related to the A/C, get a mechanic's stethoscope and probe the rotating gear to find out where the noise is coming from.






