• Planetary failure
  • Planetary wear


Insufficient lube oil and/or excessive clearances.


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

4L65-E, 4L70-E

Pinion Needle Roller
Part No. 77732-03

For 5-pinion rear planetary assemblies.

Package Quantity: 100

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Sonnax pinion needle roller 77732-03 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.

  • 4L65-E, 4L70-E Pinion Needle Roller 77732-03