You're right about hub removal. You do have to remove brake caliper and rotor after you loosen the center axle nut. The center axle nut installation torque is around 100 ft-lbs. So it will take at least that to remove it. Use a big breaker bar with wheel mounted on hub and on ground, trans in neutral, park brake set or have some one step on the brake, and wheel chocked. This way the torque to loosen the nut will not stress transmission parts, CV Joints, or half shaft. Nut is standard right hand thread (Lefty Loosey, Righty Tighty).