there are only two bearings in the axle tubes and 4 inside the diff. Remove the tire and hub. On the left side a slide hammer with a hook on the end will help get the old bearing out. Or u can unbolt the bottom shock mount and the 4 nuts on the diff to remove the axle tube. This way u can drive the old bearing out from the inside. Now on the right side the brake assem. will need to be removed to get the old bearing out of the brake backing plate. This bearing very seldom go's out. but the seal on the brake cover need to be greased and inspected often to keep water out.