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6l80 preventative measures

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On 11/30/2022 at 11:24 AM, Grumpy Bear said:

Here's an explanation of the issue from the people that make the parts used to modify them: 


6L80, 6L90 Transmissions: Consider an Updated Converter in Your Next Rebuild | Sonnax

Here is another article that complements the Sonnax article; it has more information on the waviness of the cover's clutch surface along with some nice pictures.


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