When I found out about this I immediately went to the steelership and got the updated version , I noticed a huge drop in temp from 195 to maybe 165 , it works and is worth every penny .

My 2018 Silverado 1500 transmission blew at 110,000 miles. Got a "new" transmission and after a month was seeing trans temps still above 220deg. Installed the Superior Solutions kit you referenced, and temps have not gone over 195deg since installed. Had Chevy dealership look at transmission for high temps twice before it blew and all they did was replace the transmission fluid.

I changed it on 2024 Silverado temp never goes over 175 degrees

Can anyone please let us know how you check the fluid level now with this thermal bypass? So many different answers, I’m totally confused.

I did the same thing, bought the updated GM one, then got the PPE one and also the deep pan they make to hold more fluid trans runs nice and cool. Did notice that in the cold weather here in NY trans temp does not get very high and gets very poor gas mileage in the winter.

I’m gonna assume you drained the transmission fluid before doing this ??

I have a 2017 Sierra. I just changed mine yesterday! Temps are at least 20deg cooler...

Experiencing trans failure right now on my 2014 at 150,000 miles

What's the name of this part

My 2020 AT4 10 speed has never gone past 160. I just recently changed out the fluid and filter at 95K

FYI you can tell if yours is the updated factory version. Look at the bottom of the TBV @

My 2015 subarban Mine Mine blew up 104k miles

I used the superior kit had no issues taking it apart, Trans runs at about 160 towing like my older trucks did before this stupid thermostat

I just got a 2014 Tahoe police car, will need to change that piece?

Is this the same part number for the 8l90e transmission ?

More Chevy shit !!!!!!!