512TR overall gear ratios for euro, CH, and US versions

(This discussion started at post #11 of this thread: https://www.ferrarichat.com/forum/threads/tr-overall-gear-ratios-for-euro-ch-and-us-versions.672711 -- see that thread for more background.)

It seems that the only thing they changed gear-wise between these three 512TR versions was the transfer gear ratio:

On the CH version 512TR, a taller transfer gear ratio (26/27) than the euro version (27/29) is used making all of the gear ratios of the CH version 512TR taller than the euro version 512TR. Presumably expecting that in hilly/twisty terrain, the Driver would be in one lower gear than normal anyway so this reduces engine over-revving and noise (when it that lower gear).

On the US version 512TR, a lower transfer gear ratio (27/30) than the euro version (27/29) is used making all of the gear ratios of the US version 512TR lower than the euro version 512TR. Presumably because maximum top speed is not a priority (or even possible legally) in the US so better acceleration is more desirable.

Here are the results for each version 512TR:

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