Originally Posted by grobb284
... Is the Toyota RA60 the designation for the Aisin AY6? Thanks for responding.
Yes - though offhand I don't specifically recall which Tacoma models get the RA60 versus the RA60F. I want to say the RA60 is the model used in the X-Runner.
Another thought ...
The AY6 was also used in the Cadillac CTS and (I think ...) one or more other GM models. If there's some sort of tech documentation you still need beyond the 2005+ FSM stuff, you might be able to locate it on a site / forum dedicated to one of those other vehicles.