Gear Ratios

Power is transmitted from the torque converter to the planetary gearsets through the input shaft. Clutches are used to hold and drive certain combinations of gearsets. This results in 6 forward ratios and one reverse ratio which are transmitted to the rear planetary ring gear (output shaft). The planetary gearsets of this transmission provide the following ratios:

• Reverse:
  • Front planetary gearset ratio of 1.52:1
  • Rear planetary gearset ratio of 2.24:1 (reverse direction)
  • Total ratio of 3.40:1 (reverse direction)
• 1st gear:
  • Front planetary gearset ratio of 1.52:1
  • Rear planetary gearset ratio of 2.74:1
  • Total ratio of 4.17:1
• 2nd gear:
  • Front planetary gearset ratio of 1.52:1
  • Rear planetary gearset ratio of 1.54:1
  • Total ratio of 2.34:1
• 3rd gear:
  • Front planetary gearset ratio of 1.52:1
  • Rear planetary gearset ratio of 1:1
  • Total ratio of 1.52:1
• 4th gear:
  • Front planetary gearset provides ratios of 1:1 and 1.52:1 to different rear planetary gearset members
  • Rear planetary gearset ratio of 1.14:1
  • Total ratio of 1.14:1
• 5th gear:
  • Front planetary gearset provides ratios of 1:1 and 1.52:1 to different rear planetary gearset members
  • Rear planetary gearset ratio of 0.87:1
  • Total ratio of 0.87:1
• 6th gear:
  • Front planetary gearset ratio of 1:1
  • Rear planetary gearset ratio of 0.69:1
  • Total ratio of 0.69:1