You can clean all corrosion or contaminates from the steering knuckle bore and the hub and bearing, lubricate the steering knuckle bore with
Wheel Bearing grease or the equivalent, install the wheel hub and bearing and splash shield to the steering knuckle, the wheel hub and bearing mounting bolts, the wheel speed sensor to the wheel hub and bearing, the wheel speed sensor retaining bolt, the rotor and the tire and wheel, and then lower the vehicle.