I'm at my desk at work so I don't have a manual or anything in front of me. But here's what I can tell you from memory.

You must get a proper 14mm hex driver. Check again at Poop Boys. I found a set of three drivers there that contained the right one, but they didn't sell a 14mm separately.

When leathermang says "third member" he means differential. It took me a while to figure that one out.

When dealing with things like the differential and manual transmission, you're supposed to remove the fill plug first before you remove the drain plug. The to prevent you getting the fluid out and then having the car immobile and you can't refill the fluid. Umm, the situation you're in now.

I don't remember removing anything as large as 22mm. The swaybar should be flexible enough that you can push it out of the way to access those bolts holding the bracket to the frame. Not easy, but should be possible. Once the bracket is loose and you can drop the differential those top bolts become accessible.

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Rick Miley
2014 Tesla Model S
2018 Tesla Model 3
2017 Nissan LEAF
Former MB: 99 E300, 86 190E 2.3, 87 300E, 80 240D, 82 204D Euro
Chain Elongation References