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  • Planetary failure
  • Planetary wear


Insufficient lube oil and/or excessive clearances.


This kit offers replacement parts for rebuilding damaged rear planet assemblies and gives rebuilders the option of replacing only the worn components.

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

Pinion Needle Roller
Part No. 77731-03

Fits 4-pinion rear planetary.

Package Quantity: 80

Sonnax pinion needle roller is a direct replacement for worn or damaged OE needle rollers. Sonnax pinion needle rollers are specifically toleranced for use with matching pins and gears.

  • 77731 03