Skip to main content

Add new comment

John (not verified)    December 3, 2024 - 2:54PM

Permalink

The fix for the 8 spd is a new updated valve body and switch the fluid to amsoil. I have 150k on my 8spd denali, I installed the valve body and new fluid along with a relearn procedure it fixed every issue I had with it. This is the oem tranny and I pull a trailer with it regularly. I have done this on 3 different 8 sods and it has fixed every problem they had with the clunking 1 to 2 up shift and any other shifting issues.

The content of this field is kept private and will not be shown publicly.
About text formats
  • Allowed HTML tags: <em> <strong> <cite> <blockquote cite> <ul> <ol'> <code> <li> <i>
  • No HTML tags allowed.
  • Lines and paragraphs break automatically.
This question is for testing whether you are a human visitor and to prevent automated spam submissions.