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Symptoms:
  • Thrust bearing in rear planetary fails
Cause:

Thrust loads from output shaft and gear train coupled with poor quality replacement bearings.

Correction:

Replace OE bearing with OE-quality Sonnax thrust bearing.

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

Thrust Bearing

Part No.

77731-10

Thrust Bearing
  • 77731-10_combo

  • Thrust Bearing

Small_77731-10_combo Small_77731-10

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

Thrust Bearing

Part No. 77731-10

Complaint:

  • Thrust bearing in rear planetary fails

Cause:

Thrust loads from output shaft and gear train coupled with poor quality replacement bearings.


Correction:

Replace OE bearing with OE-quality Sonnax thrust bearing.

  • Outer Dia.: 2.150"
  • Inner Dia.: 1.580"
  • Thickness: 0.160"

Sonnax fully enclosed selective thickness thrust bearing 77731-10 is a direct OE replacement for the rear planetary captive thrust bearing in GM 4L60 series units. Sonnax also offers 0.140” thick bearing 77731-09.

NOTE:

Planetary pinions must be removed for installation.

Related Parts

Contact a Sonnax Distributor to purchase this part.