Jump to content

  • Sign up for FREE! Become a GM-Trucks.com Member Today!

    In 20 seconds you can become part of the worlds largest and oldest community discussing General Motors, Chevrolet and GMC branded pickups, crossovers, and SUVs. From buying research to owner support, join 1.5 MILLION GM Truck Enthusiasts every month who use GM-Trucks.com as a daily part of their ownership experience. 

6l80 preventative measures

inspectahdeck
 Share

Recommended Posts

a1smith Enthusiast

a1smith

Posted
Posted
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.

https://gearsmagazine.com/magazine/another-problem-with-the-6l80-90-converter/ 

  • Thanks 1
Link to comment
Share on other sites
  • Replies 30
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

Popular Posts

Grumpy Bear
Grumpy Bear

1.) The converter issue is a design flaw. It's not just a bad batch of them. When it fails the debris takes out the rest of the unit. This is never just a 'replace the converter' issue when they fail.

martin31636
martin31636

I picked up a 2014 Silverado LT 141k miles in October. My first Chevy. I had to leave ford behind. The 5.4 was the final nail in the coffin for me. Anyways. I'm loving the truck so far. I did all my h

steelerdude15
steelerdude15

What brand did you use? I extracted/refilled 3.5 quarts using Amsoil 1,000 miles ago and even that amount made a difference. My transmission shifts smoother than it did before.

Posted Images

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
 Share
Go to topic listing


×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.

  I accept