Change from 4-speed to 3w/OD

AJ/FormS said

All my833s have been fully synchronized,od or not, as was the A230

But the A745 and A903, three-speeds were not
I think the 230s debuted behind the 340s in the 1970 model, then were the only 3-speed from 71on, or so.

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Then it's possible that it is just too big a jump from 1 to 2 and back to do it smoothly speed shifting or down shifting early..........either I don't know why anyone would want to do anyway, considering that the OD transmissions are somewhat weaker. They were built with primarily one goal in mind. Fuel mileage.