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

Stator Support Shaft Assembly
  • 77918s-1k_alt

  • Stator Support Shaft Assembly

Small_77918s-1k_alt Small_77918s-1k

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

Stator Support Shaft Assembly

Part No. 77918S-1K

  • Stator Support Shaft with Bushings Installed 7.300" Long

280mm or 300mm Converter, non-reluctor style

Complaint:

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

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

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

Related Parts

Click here to view PDF if instructions do not appear below.

It appears you don't have a PDF plugin for this browser. Click here to view the PDF file.

Related Tech Articles

Tory Royce

The Art of the Silver Bullet

Ed Lee

4L60-E: No Move After Rebuild

Contact a Sonnax Distributor to purchase this part.