W123 Most neglected maintenance points: Differential oil change

Some things are easy to forget. Maintenance shouldn't be one, but I've come to realize there are service items that aren't expensive or difficult but tend to get overlooked.
We'll take them one by one and get my car like it was when it rolled off the showroom floor over 38 years ago!

This process is going to be nearly identical on all Mercedes of similar era, I know W116, W123, W126 and W124 all share some differentials, literally they are identical, And those that aren't the same will be very very close.

If you have any suggestions of videos I should make, or maintenance points you'd like to remind me of, Please comment and share your thoughts, I am very forgetful but I add all the ideas to a list (when I remember long enough) and I plan on working through every suggestion I've gotten!

0:00 Introduction
1:10 What you need
1:48 Loosen fill plug before drain plug
2:50 More force required for drain plug
3:47 Ready for drain pan
4:12 Nasty oil
5:20 Reinstall drain plug
6:15 Refill with oil
6:45 Reinstall fill plug
7:30 Things to inspect while under the car
8:40 All done, See you in next video!

What you need to accomplish this:
➡Drain pan: https://amzn.to/3dxlP5v
➡Metric Hex Sockets: https://amzn.to/2FzlRx0
➡14mm Hex: https://amzn.to/2Tf6Q73
➡Gear oil pump: https://amzn.to/3j04PWE
➡1.1qts of gear oil: https://amzn.to/3j9JJoG
➡Black plush cat (Less sharp than George): https://amzn.to/37dx6Xn

(Links may be affiliate links, I will get a small commission if you choose to purchase from them, and it won't cost you a penny extra!)