Symptoms:

  • Failsafe mode
  • Gear ratio codes
  • Code P0731
  • No 2nd
  • No 3rd
  • No 4th
  • No 6th
  • No 8th

Cause:

The lock splines on the "E" clutch hub have broken/sheared off, and/or the clutch splines are heavily worn.

Correction:

Restore normal operation and avoid comebacks by installing upgraded Sonnax heavy duty "E" clutch hub.
  • 845RE, ZF8HP45 Heavy Duty "E" Clutch Hub 35572-53T
  • 845RE, ZF8HP45 Heavy Duty "E" Clutch Hub 35572-53T details