The transmission mainly consists of torque converter with lock-up clutch, newly developed 4-speed planetary gear mechanism, hydraulic control system and electric control system.
Technical specifications
| Manufacturer | AISIN |
| Model | 81-40LE |
| Gear ratios: | |
| 1st gear | 2,875:1 |
| 2nd gear | 1,568:1 |
| 3rd gear | 1,000:1 |
| 4th gear | 0,697:1 |
| intermediate | 1,019:1 |
| reverse gear | 2,300:1 |
| Final drive ratio | 3,750:1 |
| Gearbox fluid (dry filling) | 5.6 l |
| Gearbox fluid (drain and fill) | 2.1L |
| Gearbox fluid type | ISU DEXR0N III |
Pressure characteristics in hydraulic lines
| Application | At idle | With the engine not running |
| Within "D" | 3.9-4.2 kg/cm² | 11.3-12.5 kg/cm² |
| Within "R" | 6.0-6.9 kg/cm² | 16.2-18.6 kg/cm² |