Installed on my 21 Custom TB after watching your video and doing some research. I highly recommend the Sure Cool! Traveling 3hrs on the hwy at 72mph with ac on 85 degrees pulling two motorcycles on my trailer. Trans temps were at 138-142 degrees. I'm still amazed at the cooler temps. I like the full time cooler flow over the thermostat any day including the upgraded 158 degree unit. I was unaware of a thermostat at all until your video. I assumed it flowed through the cooler already. 194 is way too high for me. Thanks for the info. Keep Bossin!
Do you have a 6 or 8 speed transmission? I want to do it but I have 8 speed in a 2021 and I didn’t see anyone doing it so far, so I don’t know how much fluid it will lose during the process and as we know we can not easily fill top
you loose about 1/4 of a cup of tranny fluid - no big deal. You park the truck on level ground and with the trans temp at about 100* ( now since you removed the thermostat) remove the little 10mm check fill bolt from the trans pan. You should have a little dribble of fluid come out. If you need to add you'll have to pop the fill plug out and use a pump or a long clear 3/8 tube snaked from the engine bay to add Dexron 6. I installed this kit on my 2018 8 speed and love it!
Do you have any recommendations for the 2.7 Silverado 8L80 transmission? I’m 195-210 daily and would like to lower that a bit. It also appears the factory bypass is fully sealed.
@@nicholas6167 I have a 2020 Escalade with the 10L80. Mine doesn’t have a thermostat housing on the side like this transmission does. It’s just a block that mounts the cooler lines to the transmission. My understanding is the 10 speed is internally regulated somehow. I haven’t towed but it hasn’t gotten above 210* going up into the mountains in 100* heat.
10 speed is electronically thermostated, not a physical thermostat like the 6 and 8 speeds. So you would have to get an actual tune done to make it run cooler.
These trucks have pretty good coolers from the factory. With the 190 degree thermostat, the cooler wouldn’t be used until the temps hit 190, opening the flow to the cooler. The bypass allows for continuous flow to the factory cooler.
Okay, I have 2017 chevy Silverado.. my transmission just got rebuild because of the torque converter went out. Now my temp is reaching 196... so I'm still doing my research on it
The Sure~Cool® thermal bypass system technology allows full flow on key start. Either type of thermo block/Pellet can stick. The STL010 can't stick and it's in full flow, the pellet is static closed and if defective will smoke the unit, no matter how many coolers you wish to add.
@@limitedslipautomotiveyou don’t need special tools. They have a full port on the passenger side. You just need a pump to do it. You could have even pumped a little into the trans before you put the housing back on if you wanted or filled the housing back up. That tiny bit won’t even matter anyway.
There’s an updated thermostat for the 6L80’s why did you opt out for this? The new thermostat opens at 158° rather than 190°. The sure cool didn’t work for me so I’m trying to figure it out.
Why didn’t the Sure-Cool work? As for the updated thermostat, I didn’t see that service bulletin until after I ordered the delete kit. I still would rather have continuous flow rather than a thermostat as I take the truck off-road often.
@@limitedslipautomotive there’s probably a clog in the line or my torque converter might be going. I’m really hoping it’s a clog in the line somewhere.
Should be covered under any warranty or service program. Regardless it’s an extremely easy swap, if the dealer asks an insane price you can do it yourself.
@@limitedslipautomotive on my 8l90 fluid check temperature 131-149. You basically have to overfill a little let it warm up and then check again and let it run till is dripping
Do some plowing or get it stuck and have a bunch of wheel spin and see what happens. Your transmission isn’t anything special. It will absolutely overheat very easily.
@@louisflores653 you don’t need to abuse it to get it stuck. Happens in snow all the time in NY. Your transmission if it’s stock is garbage just like the rest of them. If it is in fact stock and it doesn’t go above 140 I’m calling bullshit.
When drove to pick up a water heater today 22 miles I only got to 127 and my dash showed 210 , operating coolant temp. Oh, when I tow my 1500lb boat 22 miles to the ramp, 127 😂 I occasionally do a TPS reset, after it I drive normally for about 20 miles, it shifts like it did on my test drive the day I bought it new 😅 I only have 20,850 miles on my truck, I'll do the transmission oil and filter at 30,000
I wouldn’t recommend this..these new transmission like the temperature up keeping the transmission to cool could cause premature wear inside the transmission
You can drop the temps into the 150 range by replacing the water thermostat to a 180 degree.The factory water thermostat is 207 degree.
Installed on my 21 Custom TB after watching your video and doing some research. I highly recommend the Sure Cool! Traveling 3hrs on the hwy at 72mph with ac on 85 degrees pulling two motorcycles on my trailer. Trans temps were at 138-142 degrees. I'm still amazed at the cooler temps. I like the full time cooler flow over the thermostat any day including the upgraded 158 degree unit. I was unaware of a thermostat at all until your video. I assumed it flowed through the cooler already. 194 is way too high for me. Thanks for the info. Keep Bossin!
Hell ya! I am still super stoked that I made this change on my truck.
Thank you, we appreciate the feedback. More vids coming.
You realize transmission temp needs to get high enough to evaporate moisture
Do you have a 6 or 8 speed transmission? I want to do it but I have 8 speed in a 2021 and I didn’t see anyone doing it so far, so I don’t know how much fluid it will lose during the process and as we know we can not easily fill top
Awesome info and video! The music takes me back to the days of Airwolf flyin low and fast! 😎👍
Goin for a little retro wave vibe!
you loose about 1/4 of a cup of tranny fluid - no big deal. You park the truck on level ground and with the trans temp at about 100* ( now since you removed the thermostat) remove the little 10mm check fill bolt from the trans pan. You should have a little dribble of fluid come out. If you need to add you'll have to pop the fill plug out and use a pump or a long clear 3/8 tube snaked from the engine bay to add Dexron 6. I installed this kit on my 2018 8 speed and love it!
Went from ~190F to ~145F on my '15 Silverado 6L80.
Love to see it!
Flipping the pill does the exact same thing same results
I put one on my 18 about 4 mounts ago it works as stated
Best thing I’ve done for my truck!
Do you have any recommendations for the 2.7 Silverado 8L80 transmission? I’m 195-210 daily and would like to lower that a bit. It also appears the factory bypass is fully sealed.
Does this work for the 10 speed transmission for the 2021 Silverado?
This particular product is only for 6 and 8 speed GM transmission.
Is there one for the 10 speed that you know or I haven’t found one yet.
@@nicholas6167 I have a 2020 Escalade with the 10L80. Mine doesn’t have a thermostat housing on the side like this transmission does. It’s just a block that mounts the cooler lines to the transmission. My understanding is the 10 speed is internally regulated somehow. I haven’t towed but it hasn’t gotten above 210* going up into the mountains in 100* heat.
10 speed is electronically thermostated, not a physical thermostat like the 6 and 8 speeds. So you would have to get an actual tune done to make it run cooler.
Why didnt you put an aftermarket cooler in? Instead of the bypass.
These trucks have pretty good coolers from the factory. With the 190 degree thermostat, the cooler wouldn’t be used until the temps hit 190, opening the flow to the cooler. The bypass allows for continuous flow to the factory cooler.
Okay, I have 2017 chevy Silverado.. my transmission just got rebuild because of the torque converter went out. Now my temp is reaching 196... so I'm still doing my research on it
The Sure~Cool® thermal bypass system technology allows full flow on key start. Either type of thermo block/Pellet can stick. The STL010 can't stick and it's in full flow, the pellet is static closed and if defective will smoke the unit, no matter how many coolers you wish to add.
@@limitedslipautomotive love you man, I'm glad you get it. It's going nuts.
@@limitedslipautomotive facts. I put a bypass change into my thermostat by cool solutions. Definitely been the best mod I’ve done
You shud come to Texas heat and test it see if it works
I definitely should!
Did you add more fluids after?
I did not, on these trucks only the dealership can measure and add fluid (unless you have special tools).
@@limitedslipautomotiveyou don’t need special tools. They have a full port on the passenger side. You just need a pump to do it. You could have even pumped a little into the trans before you put the housing back on if you wanted or filled the housing back up. That tiny bit won’t even matter anyway.
How long did the whole process take?
An hour all said and done. Could be done faster.
How do you pull up your trans tempt on the dash lol.
There is a small black knob on the instrument cluster that you can spin to change the display.
Would you happen to have the link where you purchased the kit?
globaltransmissionparts.com/6l80-6l90-sure-cool-cooler-flow-system-stl010/
@@limitedslipautomotive Thanks
There’s an updated thermostat for the 6L80’s why did you opt out for this? The new thermostat opens at 158° rather than 190°. The sure cool didn’t work for me so I’m trying to figure it out.
Why didn’t the Sure-Cool work? As for the updated thermostat, I didn’t see that service bulletin until after I ordered the delete kit. I still would rather have continuous flow rather than a thermostat as I take the truck off-road often.
@@limitedslipautomotive there’s probably a clog in the line or my torque converter might be going. I’m really hoping it’s a clog in the line somewhere.
Hope its not the converter!
@@limitedslipautomotive if there's a service bulletin would this be cover under a gm maintannce package
Should be covered under any warranty or service program. Regardless it’s an extremely easy swap, if the dealer asks an insane price you can do it yourself.
does this not work on the 2021 2.7 turbo silverado with the 8L90? i cant seem to find the housing.
It does work on that transmission. I’m not too familiar with the 2.7’s however. What’s your average trans temp?
@@limitedslipautomotive well it did not work on this motor/transmission setup. I average roughly 200-210 normal driving. But I’m on 35” tires
What trans is this
6L80
Any idea why my temp stayed the same after I installed this?
What was the max temp before you did the install?
What truck do you have? Engine and transmission?
Actually you can check and add fluid yourself in this trucks without dipstick.
My understanding is you need a special tool
to fill? Have you done it yourself?
@@limitedslipautomotive yes I did.you can use any fluid pump to add fluid
@@limitedslipautomotive ua-cam.com/video/LntBIJCa3KU/v-deo.html
And my understanding is you just have it running while you open the check plug, then fill to it leaks out?
@@limitedslipautomotive on my 8l90 fluid check temperature 131-149.
You basically have to overfill a little let it warm up and then check again and let it run till is dripping
My 18 doesn't get over 140 😊
Love to see it!
Do some plowing or get it stuck and have a bunch of wheel spin and see what happens. Your transmission isn’t anything special. It will absolutely overheat very easily.
I don't abuse my truck, it's too beautiful 😍 😆🤣
@@louisflores653 you don’t need to abuse it to get it stuck. Happens in snow all the time in NY. Your transmission if it’s stock is garbage just like the rest of them. If it is in fact stock and it doesn’t go above 140 I’m calling bullshit.
When drove to pick up a water heater today 22 miles I only got to 127 and my dash showed 210 , operating coolant temp. Oh, when I tow my 1500lb boat 22 miles to the ramp, 127 😂 I occasionally do a TPS reset, after it I drive normally for about 20 miles, it shifts like it did on my test drive the day I bought it new 😅 I only have 20,850 miles on my truck, I'll do the transmission oil and filter at 30,000
Pressure wash that mud off.your truck will run cooler without a mud blanket.
Haha, she likes to be dirty!
@@limitedslipautomotive I see now ,your truck is a she.You like dirty women.
I wouldn’t recommend this..these new transmission like the temperature up keeping the transmission to cool could cause premature wear inside the transmission
Buddy what world are you living in. 😂
Stop smoking crack my guy. Heat is the only thing that KILLS transmissions. You don’t need to do it that’s fine.