Symptoms:

  • Overheated converter
  • Worn splines
  • TCC apply & release concerns

Cause:

Overheating and manufacturing flaws cause sleeve rotation and block oil flow, which leads to transmission failure.

Correction:

Replace worn or damaged stator shaft with Sonnax stator support shaft kit.
  • 4L60, 4L60-E Stator Support Shaft Kit 77918S-K
  • 4L60, 4L60-E Stator Support Shaft Kit 77918S-K details