Not always, I've seen inner races that are "loose" but then held tight by the outer race when you bolt the retainer plate down. The inner race would have a shoulder on it if this is the case. Can't say if this is the case with the JK D44 as I haven't taken the shafts out yet myself. But I know there are people here that have, that should be able to answer this???No. The race is usually pressed or hammered in place. there should be no movement.