Symptoms:

  • No Reverse
  • Reverse slip
  • "A" Clutch burned
  • Gear ratio codes
  • Slipping gears

Cause:

The weak OE "A" clutch backing plate allows major flex that causes irregular clutch wear and burning.

Correction:

Eliminate the flexing that leads to comebacks by installing the thicker, stiffer Sonnax heavy duty "A" clutch backing plate.
  • 845RE, 850RE, ZF8HP45, ZF8HP50, ZF8HP51 Heavy Duty "A" Clutch Backing Plate 35577-45

Videos

How to Prevent ZF8, 845RE, 850RE "A" Clutch Failure