RE: Steering knuckle.. broken D/S. Noob needs help
That axle stub just slides in to the bearings and then a pin slides through the axle shaft. It's probably binding so you'll need to use a little force. I would start by resting the surface toward the camera in that pic over an open vice or between a couple 2x4s or something and rapping on the end of the axle stub with a hammer.