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Old 04-14-2001, 08:48 AM
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engatwork engatwork is offline
Join Date: May 2000
Location: Soperton, Ga. USA
Posts: 11,235
the torque converter

is a "fluid coupling" so to speak that has quite a bit of tranny fluid in it. It is like two fans facing each other. One of the fans is "driven" by the engine. As it comes up to speed the air flow from the driven fan makes the other fan rotate which then drives the tranny input shaft. In the automatic transmission the "air" in this case is the automatic transmission fluid so it actually becomes a "fluid coupling".

For more info check out the following link:

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