Scotty1269

My powertrain warranty ended 30k miles ago lol. I think I will just do the transmission job, I think it will probably save me in the long run.

Afternoon all, I've been having the same shudder/vibration rumble strip noise with my 2015 Silverado 1500 for about 6 months now. I bought the truck new in 2015 and have not had a problem besides general maintenance stuff to this point (110K). I first started noticing a hesitation or lag when shifting and or accelerating, then it progressed into a shudder/vibration noise and usually happens at around 40 mph and then at 70 mph. Letting off the gas or accelerating will stop the shudder. I did a trans fluid flush at around 100k as part of general maintenance. My mechanic kept the truck for a few days to diagnose. He narrowed down to the torque converter, just like many posts on this topic. Initially he thought we would replace just the converter but now he is now suggesting a transmission replacement vs just a torque converter as he thinks it may not solve the problem and that metal shreds may have been circulating into the transmission. After reading your post I'm leaning towards the replacement. Did you ever happen to find out if the torque converter problem had caused damage to the transmission in anyway?