Symptoms:

  • Overheated converter
  • Delayed Reverse
  • No 3rd
  • 3-4 Clutch failure
  • 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 Sonnax stator support shaft kit.

4L60, 4L60-E

Stator Support Shaft Kit
Part No. 77918S-K

245mm or 298mm Converter, non-reluctor style, universal bolt pattern

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Sonnax stator support shaft 77918S-K kit for GM 4L60 and 4L60-E units 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 6.830" Long
  • Bushings (3)

Sonnax valve body layouts provide a detailed overview of individual units making it quick and easy to determine what’s available for the specific valve body you’re working on. See all Sonnax valve body layouts.

GM 4L60 (700-R4) Valve Body Layout

GM 4L60 (700-R4) Valve Body Layout

GM 4L60-E, 4L65, 4L70-E Valve Body Layout

GM 4L60-E, 4L65, 4L70-E Valve Body Layout
  • 4L60, 4L60-E Stator Support Shaft Kit 77918S-K
  • 4L60, 4L60-E Stator Support Shaft Kit 77918S-K details