The transmission is mainly composed of a torque converter with a lock-up clutch, a newly developed 4-speed planetary gear, a hydraulic control system and an electrical control system.
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 off |
| 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 |