Transaxle Description

Fig 1: Identifying Automatic Transaxle

Courtesy of FORD MOTOR CO.

The 4F50N (AX4N) automatic transaxle is a 4-speed unit with electronic shift control. It is designed for operation in a transverse powertrain for front-wheel drive vehicles and has the following major components:

• Case with chain cover
• Chain drive
• Apply components:
  • Two friction bands: overdrive, coast
  • Five friction clutches: forward, direct, intermediate, reverse, low-intermediate
  • Three one-way clutches: low, direct, low-intermediate
• Two simple planetary gear sets:
  • Front
  • Rear
• Final drive planetary gearset
• Differential
• Pump assembly
• Main control