How do you take apart the front hub assembly on a 1975 Chevy k10 4WD?

remove the manual locking hub with an Allen wrench. there will be a ring in a recess at the lip of the hub, using a small flat head screwdriver, pry the ring up and pull it out. after that you can pull out the 4x4 hub and you will see the a large nut with 4 notches in it, this requires a special socket to remove. there will be a flat washer with holes cut in it, this will slide out and you will see another larger nut, remove that and you will pull out the wheel bearings with the hub.