January 7, 2022 at 9:47 pm
#687035
Spike2105
Participant
Here’s some info I found relative to the 6L80 6 speed transmission for your truck. It seems the manufacturer, GM, has known about the issue..
Here’s the lawsuit filed just 5 days ago.. I’m not certain though whether it includes the 6L80 or not, but it definitely lists the 8L80
https://theweeklydriver.com/2022/01/gm-lawsuit-claims-faulty-transmissions/