I removed the first nut and rubber washer and loosened the larger nut. I turned the steering wheel whilst the car was on the ground and when I re-tightened the nut and could no longer make the rattling happen. I checked everything again and went for a drive. The car seemed to be ok for half a mile and then the rattling came back. The nuts are all tight when I returned. The pictures show the position of everything now, and it looks right to me. The order of refitting of the parts is spring,spring cup,bearing (flat side down),rubber top,27mm nut (spacer built in).Once on the car the rubber washer is fitted and then the 21mm nut.