Description And Operation: GEARTRAIN: Notes
WARNING: This page is about a different car, the 2009 Mercury Grand Marquis and 2009 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.
Power is transmitted from the torque converter to the Ravigneaux geartrain components through the input shaft and forward clutch cylinder.
- The geartrain contains a Ravigneaux planetary set connected by dual pinion gears.
- By holding or driving certain components of the gearset, 4 forward ratios and one reverse ratio are obtained and transmitted to the output shaft. The ratios are as follows:
| Gear Ratio | |
|---|---|
| 1st | 2.84 to 1 |
| 2nd | 1.55 to 1 |
| 3rd | 1.00 to 1 |
| 4th | 0.70 to 1 |
| Reverse | 2.32 to 1 |
- Components of the geartrain can be held by bands or clutches and driven by clutches only.
This transmission uses:
- two bands.
- two one-way clutches (OWCs) (one roller, one mechanical diode).
- four friction clutches.