Transmission System Description and Operation: General Description
WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
The Aisin AY6 is a 6-speed transmission with 6th gear being an overdrive ratio. All gear positions are synchronized. The transmission has a speed reflector wheel on the output shaft for the vehicle speed sensor. The transmission uses 4 aluminum housings. Roller, tapered roller, and ball bearings support the input shaft, countershaft, and output shaft. No shimming is required. For proper set up, selective thickness retaining rings are used. All of the speed gears use needle bearings. The AY6 uses a special 75W-90 transmission fluid.