Very well done! I noticed that you did everything in the proper sequence in the video, but perhaps some emphasis could be added to the importance of removing the fill plug first and reinstalling it last. The reason for the latter is obvious, but a few owners have made the mistake of removing the drain plug first, then have a problem trying to remove the fill plug for some reason - it may have been over-tightened the previous service, the threads somehow got damaged, whatever. The point is, you may have a real problem on your hands if you drain the gear lube and are then unable to refill with fresh lube.....