Replacement 10 speed trans

bowtie76 · July 31, 2023

I love my 2020 5.3 AT4 but I'm not sure it loves me.

it looks like my transmission is done at just under 70k miles, it's at the dealer waiting for a diagnosis but the 10 speed has started shuddering at low load throttle (1-2k RPM) with harsher shifts and a little surging every once in a while while accelerating. I'm half hoping it just started and will be a quick easy fix, but also realizing I'm probably in for a new tranny.

So what is the best replacement out there? This is my first vehicle with an auto so I don't know a lot about replacements etc. I've seen Jasper thrown around, a 3 year 100K warranty sounds good to me. I use the truck as a daily driver, if I fix it I would hope to get the truck to 150K+ miles without another major repair.

Open to any suggestions out there.

bowtie76 · July 31, 2023

Update,

Dealer called, said they need to replace the Torque converter and the valve body. I didn't get to talk to them so not sure if they dropped the pan and looked for shavings.

I'm worried I replace these parts only to have the whole tranny go in another 5k or so.

Any advice? Is there a heavy duty TC that would be better?

Thanks

Silverado4x4 · July 31, 2023

14 minutes ago, bowtie76 said:

Update,

Dealer called, said they need to replace the Torque converter and the valve body. I didn't get to talk to them so not sure if they dropped the pan and looked for shavings.

I'm worried I replace these parts only to have the whole tranny go in another 5k or so.

Any advice? Is there a heavy duty TC that would be better?

Thanks

They had to drop the pan if they looked at the valve body.

bowtie76 · August 1, 2023

42 minutes ago, Silverado4x4 said:

They had to drop the pan if they looked at the valve body.

Thanks,

They moved to text so this is all I have until I call in the am.

Good afternoon--we were able to duplicate the issue-We graphed it with our scanner and presented the data to GM tech assistance-Their recommendation is to replace the torque converter and valve body

Sounds like they just connected I to a computer and drove it, doubt they opened it yet.