How do you replace the king pins on a Isuzu npr?

To replace the kingpins on an Isuzu NPR, first, safely lift the front of the vehicle and secure it on jack stands. Remove the front wheels and brake components to access the steering knuckle. Detach the kingpin by removing any retaining bolts and using a kingpin removal tool to press out the old pins. Install the new kingpins by reversing the process, ensuring everything is properly torqued and aligned before reassembling the brakes and wheels.