- Thrust bearing in rear planetary fails
Thrust loads from output shaft and gear train coupled with poor quality replacement bearings.
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.
Planetary pinions must be removed for installation.