Symptoms:

  • Planetary failure
  • Planetary wear

Cause:

Excess clearance due to worn planetary components.

Correction:

Rebuild the front planetary using Sonnax batwing washer.

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

Batwing Washer
Part No. 74582-01K

Fits 5-pinion front planetary.

Find a Distributor

Sonnax PTFE-coated batwing washer 74582-01K is a direct replacement for worn or damaged OE washers in GM 4L60-E, 4L65-E and 4L70-E transmissions.

April 02, 2008

An Easier Way to Rebuild Planets

Gregg Nader

Topics: Rebuilding Tips Transmission GM 4T65-E Transmission 4T60-E Transmission 4L70-E Transmission 4L60 Transmission 4L60-E Transmission 4L65-E Transmission 4L80-E Transmission 4L85-E Transmission

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September 05, 2007

Conquering the Planets

Gregg Nader

Topics: Rebuilding Tips Transmission GM 4T65-E Transmission 4T60-E Transmission 4L70-E Transmission 4L60 Transmission 4L60-E Transmission 4L65-E Transmission 4L80-E Transmission 4L85-E Transmission Powerglide Transmission

Read Now
  • 74582 01k
  • 74582 01k alt