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Adjustment shims for the alternator or generator pulley, fits between the pulley halves and the pulley washer to tighten or loosen the fan belt.  Installation Note: When installing pulley shims it is critical that you use the proper amount of shims between the pulley halves and the remaini..

Adjustment shims for the alternator or generator pulley, fits between the pulley halves and the pulley washer to tighten or loosen the fan belt.  Installation Note: When installing pulley shims it is critical that you use the proper amount of shims between the pulley halves and the re..

These EMPI pulley shims are designed for use with the EMPI aluminum pulleys. The pulley shims come in a pack of five. Application Note: This is considered a universal part and can fit many different applications based on modifications to the vehicle. Application information is just for referenc..