I am just curious as to which rear gear ratio the owners of the new 2018 Mustang GT with the new 10 speed auto transmission have. Mine came with the standard 3.15 rear gear ratio as I suspect most were so equipped. A 3.55 was a stand alone option with the 10 speed which is what I wanted but there were none available in my area of Wisconsin. I know that the 3.55 was part of the performance pack with the 10 speed but none were available either.

 

I'm getting a manual so I'm going to stick with the 3.55 that comes with it. It's going to be my daily driver and I'll probably never do anything serious race-wise with it so I'm not getting any of the GT Performance Packs.