Just went out and looked at my truck, it definitely matches your links descriptive shape of a 9.75 differential. Also I was at a differential distributors parts warehouse looking for a magnet filler plug and their 20 year parts counterman went out to take a look at my differential. With no conversation or inquiry being made about differential size he just commented your truck has a 9.75 differential. There was no 9.75 specific option in my build your own 2018 truck's build, they just came with a differential. I there would had been I would have definitely specified it. I did purchase the 3.5 EB with Max Tow which came with a electronic locking differential so I guessing there are several more 9.75 out there. Sadly no magnet filler plugs.