2020 Chevy Suburban - 6L80 cooler thermostat delete

In this video, I will perform installation of Shift Technology Products STL010 transmission cooler thermostat delete kit in a GM 6L80 transmission. This kit offers flow to the cooler 100% of the time, with a bypass feature in case of fluid restriction.
Here is a link to view this product on Amazon:
amzn.to/3EyfuVA
See my other videos for performing a full fluid exchange on the transmission
2015, 2016, 2017, 2018, 2019, 2020
Chevy Chevrolet Suburban

[@tylerkimdura6690]

Yes!!!! This is amazing. I added another Hayden transmission cooler to my 09 Tahoe and the transmission sits around 140-150F. Best mod ever!

[@robertbain2894]

Great Vid . getting ready to do this to my 2018 Silverado 1500 LT. Waiting for part and gasket to come in. Was also enjoying Ann & Nancy Wilson in the background.. Thank you....

[@gcrauwels941]

This is what I'm using.

[@jimflammer9370]

It works on a 2021 Chevy Silverado 1500 2WD 8l90 transmission. Seems to lower temperature somewhat.

[@kaiserwillie67]

My understanding is this mod helps torque convertor longevity. On these transmissions if the convertor goes up it can take out the entire transmission.

[@smokingoatgarage]

You are correct. It appears the weak link in these units is the torque converter clutch. I have not heard the specific mechanism that causes it to fail, but heat is the enemy of any hydraulic system and this is an easy mod to reduce the temperature.

[@gcrauwels941]

@@smokingoatgarage There's a great explanation of why they're a weak link on Sonnax's website.

[@davidross9271]

I have a 2020 suburban that I pull a camper with. This would be a great modification.. Where did you buy the conversion kit? And which one was it?

[@ichiara07]

is it worth it and what is the main purpose aside from cooler temp and trans life span?

[@smokingoatgarage]

Was definitely worth it. The cost and time invested was minimal to reduce the trans temp. Max I see now is 165 where I was near 200 before. Keeping the trans fluid cool will extend the life of the internals, bar none

[@livealikeTimmy]

How much of a temperature difference does it make ?

[@smokingoatgarage]

Consistently >20 degrees drop.

[@bxclone]

How much does it cost? And can you do it till 2018 Chevy Tahoe premier

[@smokingoatgarage]

You can buy the oil here

[@GoExpicitYourself4482]

20% drop in temp.

[@alonsoduran7759]

What was your max temp ?

[@smokingoatgarage]

It’s now June. Seeing ambient temperature of 85 F. Idling in traffic my max trans temp is around 180 F. Once I get going it drops to high 160s