The best way to remove the pin (8mm x 32mm) and replace the king pin on the front steering knuckles (swivel bearings, wheel hubs) is by using a hydraulic press and hot temperature.
This is the direction to punch out and back in. The directions are the same on both wheels.
I am working on slow motion and waiting for a little warmer weather. Here in Quebec, Canada in January and February the temperature goes down to -25 ℃ to -30 ℃.
Glorious is the name of Christ.