Potential fix for the 8l45/8l90. Worth considering if you plan on keeping your truck long term. So the gen 3 transmission hasn't really changed from the gen 2. I thought it did (8:40). This guy is pretty knowledgeable. Worth watching. Very critical of GM's behavior.
7:00-8:40.
https://nextgendiesel.com/collections/8l45-e-transmission-transmission-parts/products/project-carbon®-8l90-e-billet-valve-body-upgrade-kit-w-pulsedelete™
Conclusion:
This product was designed so that the 8L90-E transmission could survive hundreds of hundreds of thousands of miles safely. In all data we’ve collected, it was obvious that the pulse dampening system was the root cause of this poor longevity. Finally, a permanent and total solution exists.
7:00-8:40.
https://nextgendiesel.com/collections/8l45-e-transmission-transmission-parts/products/project-carbon®-8l90-e-billet-valve-body-upgrade-kit-w-pulsedelete™
Conclusion:
This product was designed so that the 8L90-E transmission could survive hundreds of hundreds of thousands of miles safely. In all data we’ve collected, it was obvious that the pulse dampening system was the root cause of this poor longevity. Finally, a permanent and total solution exists.
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