Symptoms:

  • Damaged case
  • Retaining ring pops out of groove
  • No Reverse
  • No Manual 1st
  • Reverse slip

Cause:

Existing retaining rings are not strong enough to withstand slight radial movement of the pressure plate, which walks the retaining ring out of its groove.

Correction:

Replace the low/reverse retaining ring with the heavy duty Sonnax version, which is wider and stiffer than other rings and provides more outward spring tension to stay securely seated in the case groove.
  • 5R110W Low/Reverse Retaining Ring 36885