I would never be arrogant enough to think I know it all Mark so no worries about eggs and Grandmothers -lol I was replacing the hub (using one from spare axle) as the wheel bearing was u/s. Gave up trying to remove the sensor on the car and just pulled the hub, which destroyed the sensor in the process. So, thought I'd use one of the sensors in my spare axle. One of those is now destroyed trying to get it out. Only one left :-(