For the front you have to take the entire steering knuckle off. Which includes taking off ball joint, tie rod, axle nit, and then entirte knuckle. The bearing has to be pressed out. you need to have a press. For the rear it is real simple. Take the drum off. If you have rear rotors. Take off caliper, caliper bracket, then rotor. The center nut that is in the bearing, take that off. The bearing and hub assembly should just slide off. here are some pictures for the front and rear.