Quote:
Originally Posted by Young1
You may have to re clock the replacement alternator and for sure you will have to change the pulley. Or take the one you have to a reputable auto electric shop and have it rebuilt. The pulley is unique to the ZR one and critical for proper belt tension.
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Also critical for RPM for the alternator itself (probably more so than the belt tension)
I had swapped one once and used the wrong pulley (kept the OEM unit) and while it was much easier to install the belt, the High RPM of the alternator with the smaller pulley, killed it faster