If you 'frequently' cruise at 110 mph you do not want a 3.73 ratio rear.
You're going to noticably raise the the RPM's at that speed and shorten engine life.
You have to decide if you prefer top-end speed or low-end acceleration or else give up some of both. That's why most Mercedes-Benz and BMW's sold in Europe have very high top-end speeds but so-so quarter-mile times, despite sophisticated, high horsepower engines.
I suggest a shift kit for your AOD to help it on the low end. Stick with the stock gears.
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