How do you replace the dampener pulley on a 1998 gmc sonoma 4.3?

To replace the dampener pulley on a 1998 GMC Sonoma 4.3, first disconnect the negative battery cable and remove the serpentine belt. Use a puller tool to remove the old dampener pulley from the crankshaft. Install the new dampener pulley by aligning it properly and using a torque wrench to tighten it to the manufacturer's specifications. Finally, reattach the serpentine belt and reconnect the battery.