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- Fri Jan 30, 2026 4:53 am
- Forum: General Support
- Topic: Does the Diablo tune or Diablews transmission tunes help 6l80 TC reliability?
- Replies: 1
- Views: 197
Does the Diablo tune or Diablews transmission tunes help 6l80 TC reliability?
2016 Silverado. Did the diablo tune at 50k years ago, so I did the canned trans firmness tunes. Just paid for diablews tunes this year which made it shift even better. 135k with regular trans fluid changes and lower temp thermal bypass a few years ago. Trans shifts good and firm no shudder, yet at ...