Fourth Gear Power Flow
WARNING: This page is about a different car, the 2012 RAM Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
| 1 - INPUT SHAFT | 7 - F1 ONE WAY CLUTCH |
| 2 - K1 CLUTCH | 8 - OUTPUT SHAFT |
| 3 - K2 CLUTCH | 9 - P3 PLANETARY ANNULUS |
| 4 - K3 CLUTCH | 10 - P2 PLANETARY ANNULUS |
| 5 - B1 BRAKE | 11 - P1 PLANETARY ANNULUS |
| 6 - B2 BRAKE | 12 - SUN GEAR SHAFT |
FOURTH GEAR
| K1 | K2 | K3 | B1 | B2 | F1 | GEAR RATIO | |
|---|---|---|---|---|---|---|---|
| FOURTH GEAR | X | X | 1.00:1 | ||||
| X = in operation | |||||||
When oil pressure is applied to K1 clutch (2), and the input shaft (1) and the sun gear shaft (12) are directly connected, the sun gear shaft (12) rotates clockwise.
When oil pressure is applied to K2 clutch, then the P3 planetary gear rotates clockwise via the P2 planetary gear (10).
This action gives a clockwise turning effect to the P3 planetary annulus (9) and the clockwise turning effect is given to the output shaft (8).