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Symptoms:

  • 3-4 Clutch failure
  • No 3rd
  • Delayed Reverse
  • Overheated converter
  • Code 1870

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 this stator support shaft assembly

4L60-E, 4L65-E, 4L70-E

Stator Support Shaft Assembly
Part No. 77918S-1K

280mm or 300mm Converter, non-reluctor style

View Instructions

Sonnax stator support shaft assembly 77918S-1K eliminates sleeve rotation by mechanically fastening the sleeve in place with a set screw, further securing the sleeve in place with Loctite®. The assembly is 100% leak tested by Sonnax to ensure a secure seal. Shafts have slotted bolt holes for easy alignment during installation.

  • Set screw and Loctite eliminate sleeve rotation
  • Slotted bolt holes for easy installation
  • No machining required
  • Bushings installed
  • Stator Support Shaft with Bushings Installed 7.300" Long

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  • 77918s 1k alt
  • 77918s 1k