And it's not too cold either.

If it's got the block on the side of the trans then yes use STL010®

yes it does on 2021 and up

Yes your fine. It's at temp for all intensive purpose once you start driving. The trans can run in all ambient temps. If it gets to cold to gel the fluid out bypass kicks in.

Go to the website www.superiortransmission.com and the instructions are there. If your block has 2 lines in and 2 lines out then yes. Call tech at 850-575-7155

Check the gauge, sending unit, the trans temp sensor and the harness. If that's all good add an external trans cooler in parallel with your existing set-up. Otherwise you have a slipping converter or a holding element in the trans (clutch pak or roller) damaged or failing. It could hit 205-210 on an upward heavy grade but as soon as the load is overcome, (going down hill) the temp should go down to the 170-185 range if coolers are efficient and no trans internal damage. You need to add a cooler.

the china counterfeits have 3 large O-rings and 1 small O-ring and copper colored spring, our genuine patented STL010 has ONLY 2 LARGE and 1 Small O-ring and a RED spring... some bought the Counterfeits and installed the 3rd O-ring. in the middle groove blocking the feed holes. that is a possibility, if you got a knock off? tech line (850) 575-7155 USA east std time zone. they will be happy to assist.

If it has the block bolted on to the case, use STL010 ™ and if it has the two line in with 2 lines out use the STL020™ kit

Use part number STL020 it is now use on the late 21-up 10 speeds

I have received your STL020, I feel pretty ignorant, but I am unable to figure out the instruction included with the kit. I have looked for a video to help with installation, with no success. I did see the video explaining the different kits and applications, but I don't see where it shows the proceedures for installation of the STL020. Can you please help? Sincerely, Tony K

@@tonykucherry8846 call the tech dept. At 850-575-7155, leave your number and area code and we will be in contact with you. Thanks!

Superseded to the STL020™ with visual instructions of the blocks. Fits many late Ford and GM now too

Install the STL020 ™ sure~cool® system it drops right in. The 017 was upgraded into the 020

you can go to the site and find distributors off our disty page and type in the part number and it will take you to the STL009 product. you can also google online authorized distributors with the part number. beware of counterfeit copies on amaz and ebay.

WWW.SUPERIORTRANSMISSION.COM

also know this type is between the valve body and case INSIDE the transmission. its one that the valvebody needs to be removed to install the product. just FYI

Then something is wrong.......did you do it yourself?

@@alfenner3309 transmission shop did the install, but i confirmed with the other shop i bought from they said it wont keep the temps down but is more for safety as the factory one can get stuck closed preventing flow and cook your trans. He also said if you want to keep transmission temperatures down properly you need to fit a transmission cooler and do away with the pathetic Factory one. So will be likely doing that. This is Australia on the ford ranger with the 6r80.

@@ageraRable what year rig is it your driving? I have a 2015 silverado and I did the fix on mine and my temps hardly reach 150-155.

@@alfenner3309 mines 2015 Ford Ranger, i think the Silverados run different temps .so the two are not apples for apples.

Sorry I just saw this set of posts. They all gm Holden Ford etc run pretty close in temps. With our the bypass. 203 is too hot, have you used a temp probe on the pan, it should read close to what it's temp is flowing wide open. Unrestricted. You may have or the shop may have to fing the flow restriction. A clogged cooler would be suspect. With the STL009 it installed between the valve body and trans case.

As long as it has 2 lines going into the block and 2 lines out of the block yes use part number Sure~Cool® STL020™ the instructions gave pics too.

Just saw your post, you should be fine. The gm LV fluid pour point is -60. So your still good 😊

@@superiortransmissionpartsi5357 ok. I’ll take your word for it. 🙂

It's comes with instructions, but the nub faces the valve body on the STL009

@@superiortransmissionpartsi5357 I’ve already bought it and installed it. Easy peasy and now running 20% cooler!

Put it in my and my dad's trucks (5.3/6L80) about a month ago. Running about 135 on the highway in 50-70 degree weather. Will see how they do this winter, we only get down to teens and maybe a few single digit negative days.

@@jiimmyboy63 yeah you’ll be fine in those temps. I’m in Manitoba Canada where we see mid -40’s to -50’s thru January and February. I don’t think this will be good come then in my 17 Sierra. Have it in now and it’s good but it’s already running way too cold. 6.2 gas with 8L90 8 speed.

@@jaybilawchuk2225agree. Way too cold in those climates. these average about 100° over ambient temperature I love mine but I can get away with it where I live. I have friends that live way up north and their transmissions never get above 30° in the winter. That’s the part they dont tell you …

@@fishman80 very accurate. My winter operating temps when warmed up with this bypass is 18 - 20C. I don’t think that is healthy at all. Frozen fluid is prob causing more failure than overheating. I had to switch mine out. I just couldn’t run with temps that low.

@@jaybilawchuk2225 yup. I mean it’s a great product for what it does depending where you live but I don’t understand why they don’t tell you that. the advertisement of temperature decreases up to 40° is not accurate, it’s not how it works. like I said, it’s a great product but your temperatures are 100% dictated on what the ambient temperature outside is.

King o matic / Transtar or Canada wide or Google the part number. STL010

I found a place to ship to Canada. I’m just not certain this will be a good mod for our winters up here. May wait till spring. It gets down to -40F for a better part of the winter. On one hand everyone is reviewing summer weather conditions….no one has said anything about 40 below conditions. ​@@superiortransmissionpartsi5357

@@jaybilawchuk2225 the gm fluid has a pour rate at -60 below. And....

@@jaybilawchuk2225 the bypass is still active so if the fluid was too thick to flow the bypass is working to heat the fluid at the extreme low temps. If your cooler routes thru a rad tank that also acts as a preheat source. It works, we sell them world wide and no issues as far as we are concerned. And it's patented, and patent pending world wide. We have them for ford's and the 2022's that were redesigned and are still sticking and melting down units for a 45-50 part.

@@superiortransmissionpartsi5357 Thank you. I will prob put it in then and see what happens. I’m sure it’s going to be good. I just wish I would’ve known about this sooner. I think it’s a great mod for this issue. Lower running temps are always better. Cheers from central Canada!!

Depends on the why's, what is the diagnosis on why? If you fully rebuild it you need the STL-6L80E valve body kit, the STL012 pump kit and the STL010. The STL018 boost valve is recommended if you pull. Use those on top of a quality master o/h kit and a techm. And don't scrimp on a converter, buy a gm updated or the new heavy duty form circle D in Houston or one that at least has the billet cover and dual disc lock up clutch with hd plate.

@@superiortransmissionpartsi5357 I wanted to give an update for the wat route I went with. After speaking with a very well experience mechanic i decided to purchase a 8l90 transmission and have the thermostat bypassed from the start to help the life of the transmission.

@@Stop_the_cap311 save your receipt and send it to gm see if they will help.

@@superiortransmissionpartsi5357 thanks I will doo that

It will run cooler and be protected from cold low flow/no flow at startup. If you have it in a flow thru type ( goes from transm to eng. To cooler back to transm) it will stabilize on warm up and probably run in the 140's to 160's...but ours will keep the bypass functional when needed. If you have a type that goes from the transm to air cooler to transm and does not go thru the rad tank, then you will run chilly at 120-160 dependant on how fast the trans internally heats it to normal operating temp. In this type the torque converter is the only heat source. In a dual system the radiator tank cooler is heating the atf as well as the torque converter producing heat. So some vary but no worries as the atf fluid will flow at -60. So no harm, no foul.

@@superiortransmissionpartsi5357 thank you for the very detailed and quick reply my sierra runs the 6L80 trans i just spoke to GM and they claim the updated valve is faulty and offered a replacement but if you say the Stl010 kit will be fine in the winter cold i think id much rather do youre delete kit

@@VictorSanchez-in2oe Vic please call me at 850-574-2369 x207 I would like to get that old bypass for a show in Vegas I'm doing next month, call me and we can work something out. Thanks Bob w

Hi bob this is the bulletin static.nhtsa.gov/odi/tsbs/2021/MC-10207911-9999.pdf@@superiortransmissionpartsi5357

@@superiortransmissionpartsi5357 similar recall done in 2014 static.nhtsa.gov/odi/rcl/2014/RCRIT-14V152-7634.pdf

STP Part STL010 cooler flow Sure~Cool® system patented and patent pending tech is made in the USA. you can go to our website and hit the "find a distributor" tab and type in your address and it will pull up the closest dist. or you can google our part numbers (i.e. STL010) and there are several online retailers. we do not sell direct as we are the manufacture and developer of the products based here in Tallahassee Florida. sorry for the long response time we were on an extended VACA.

unless you have -40 deg F. where the fluid gels like molasses. the bypass on the STL010 would kick on and lube loop tm the fluid until it flows and levels out the pressure difference. The torque converter in that case can be looked at as a heat source.

New updates the 017 has morphs into the STL020

We updated the STL020 to encompass several other block types and the STL020 is available.

Where are you located?

Harford, Maryland

Google STL020 many online sellers

use the STL020 on that type. contact the tech dept. for further applications. 850-575-7155 leave message and return phone number. we can help.

Google the part number STL010 for the gm version. 2007 did not have them. 2014 up

It's full wide open all the time, unless a condition exists where the bypass would need to function. But yes it will flush w/o issue

STL020 just Google the part number, it's transmission parts specific. You can watch the ford video on the website but we updated the STL017 and blended into one kit

The new part kit is the STL020 and the 017 was discontinued as we picked up some mbz applications and jeeps. Along with all the ford styles that match the diagrams in the instructions. 6R60-2015 up external early in unit is the STL009 and vids of that too.

That figures !! just have a flaw in the engineering !

if your temps are higher than the average 150-165 deg. after installing the Sure~Cool then you have some component slipping in the transmission or torque converter. the default state of the Sure Cool is wide open flow on start up. the factory pellet is still closed so ???? it will NOT open till 192 deg. nothing flaw here.

Check the air dams and fins in the cooler up front, make sure you don’t have debris obstructing air flow. THEN...if the air path is clear, YOU NEED TO SCAN THE TRANSMISSION AND SEE IF ANYTHING IS SLIPPING CAUSING THE TEMP TO CREEP UP. The patent-pending Sure~Cool® system acts as a test device, as it removes any restriction to flow from a stuck pellet or a partially jammed pellet (that would stop or affect cooling flow) AT VOLUME, and since the pellet was removed when you installed the Sure~Cool®, it is keeping the fluid flowing, as our default state is Wide Open Flow. Unless you installed the Sure~Cool® out of order (correct order = dual o-ringed Cap, ball, red spring (little end towards ball and cap) and the orifice bullet with the O-ring that goes inside the block) and if that is order correct, then you have other areas to check. A. Inefficient Cooling thru transmission cooler (needs an external added) added cooler will bring the temps down as long as the transmission is in good shape (see B. & C.) B. TRANSMISSION component slip* (internal) ***Note: You may or may not “Feel” the Slip but the scanner will catch it on a road test. Slippage of this type will not last long as the unit will suffer demise. C. Torque Converter Clutch not holding and slipping just enough to not set a code but cause heat to creep up on the scanner. This too will lead to demise of the unit. After replacement WITH THE SURE~COOL® system installed, you can still have higher than normal temperatures on the oil gauge, if you experience this after install, you have another issue internally.

The Sure~Cool® system does these features and benefits. A. Removes the chance the factory pellet will not stick closed or jam up destroying your transmission thru any fault of your own. B. Now allows, immediate start up with full flowing fluid thru the main transmission lines and cooler at normal working pressure and at full volume. C. Keeps a factory designed Bypass fully operational (if needed) and “not plugged off” (with a cork or a screw) D. Factory bypass is now used as a “safety system” (if cooler or lines are damaged or severely restricted) the bypass kicks in and unseats the ball and re-routes lube / working oil back to the Lube~Loop™ to keep oil flowing to the internals for lube and cooling. E. Can be used in extreme cold climates where fluid can gel and cause restriction to flow. The Sure~Cool® system keeps the fluid Lube~Loop™ flowing until restriction of frozen ATF is overcome and flowing at full volume and pressure. *Note: temps can still climb up some when towing or going up steep hills loaded etc. the STL010 will keep the flow routed when needed and is your sign (if temps get over 200 deg. To get it to a professional to ascertain what is causing the overheating condition.

Make sure your gauge and temp sensor are in spec. We have had 2 with out of range due to bad temp sensor. Just a thought.

Yes, 6L and 8L

Where can I order one?

Transmission parts suppliers, go to our website www.superiortransmission.com and hit the find a distributor tab and type in you zip or Google it STL010

This will cover 2014- up 6L/8L series transmission types predominantly in trucks. Do you have one in line on the Vette ? We have seen a few aftermarket ATF warmers for Canada vehicles that were built into a cooler / line assembly but not the Corvette. Shoot a pic of it on the vehicle and sent it to us via the website our contact info is there. We see new applications from time to time and appreciate your comments.

Should run in the 150-170 range average. Most see about 155-165 normally.

@@superiortransmissionpartsi5357 okay, I live in Phoenix where the temp Is about 97. I just got an rebuild transmission done on it, due to an bad torque converter. Had it for 3months off the dealership.. so I h0pe this will make it last longer

The Sure~Cool® system does these features and benefits. A. Removes the chance the factory pellet will not stick closed or jam up destroying your transmission thru any fault of your own. B. Now allows, immediate start up with full flowing fluid thru the main transmission lines and cooler at normal working pressure and at full volume. C. Keeps a factory designed Bypass fully operational (if needed) and “not plugged off” (with a cork or a screw) D. Factory bypass is now used as a “safety system” (if cooler or lines are damaged or severely restricted) the bypass kicks in and unseats the ball and re-routes lube / working oil back to the Lube~Loop™ to keep oil flowing to the internals for lube and cooling. E. Can be used in extreme cold climates where fluid can gel and cause restriction to flow. The Sure~Cool® system keeps the fluid Lube~Loop™ flowing until restriction of frozen ATF is overcome and flowing at full volume and pressure. *Note: temps can still climb up some when towing or going up steep hills loaded etc. the STL010 will keep the flow routed when needed and is your sign (if temps get over 200 deg. To get it to a professional to ascertain what is causing the overheating condition.

the pellet type can still stick, ours is not a pellet type. you will always worry if today... is the day.

if you have the 6L with cooler lines going into the radiator and then into the auxiliary cooler you will be fine, the coolant will act as a preheater to the ATF when it goes thru the radiator / trans cooler, and visa versa... it will scrub some heat off the engine above 215 deg also,. its minor but it does. for that extreme cold type of climate, most use auxiliary electric heaters to keep them warm. the update still has a pellet too, so your back to "when will it stick" mentality.

the TransLab / Superior STL010 Sure~Cool® system is full flowing on start up, helps to keep the fluid flowing and if the temp outside is cold enough to thicken or freeze the AFT the Sure~Cool® system's dynamically active bypass kicks in and routes the ATF thru the Lube~Loop™ that is inside the block to heat the fluid and allow flow to the internals of the transmission. Especially for short hops on cold days, you would want the features of the Sure~Cool as its... A. fully flowing on start up, stays flowing unless a restriction is blocking adequate cooler flow.

B. the active bypass of the Sure~Cool® dynamically kicks in and allows fluid flow via the Lube~Loop™ inside the cooler block, lubing and cooling the internals and lube circuits, so if its Plugged (on purpose or via flipping the pellet) YOU HAVE ZERO FLOW THRU THE BLOCK...NO FLOW, Period. C. AND For Your short hops... if the pellet doesn't open for 30-45 mins on average and you drive for 15 mins to work, from work, to home etc.. when would it be open????????? B. the active bypass of the Sure~Cool® dynamically kicks in and allows fluid flow via the Lube~Loop™ inside the cooler block, lubing and cooling the internals and lube circuits, so if its Plugged (on purpose or via flipping the pellet) YOU HAVE ZERO FLOW THRU THE BLOCK...NO FLOW, and that includes short hops... if the pellet doesn't open for 30-45 mins on average and you drive for 15 mins to work, from work, etc.. when would it be open????????? right it never would open, our system, is open and cannot stick... ALSO the oe. version, no matter the TEMP setting of the pellet, will still eventually stick from debris or contamination especially not opening during short runs. hope that helps...

the average is about 120-140 in ten minuets at zero F, and could be quicker if you have the radiator trans cooler in the loop as it acts as a preheater for the system. some are direct to the external cooler omitting the radiator (oil to coolant exchange) and if you have that type it will stay colder during the initial start-up. cold fluid doesn't hurt a transmission, NO FLOW from the cooler circuit / Lube Circuit WILL. ours keeps flowing... the rest, keep watching the video and wished they would have bought the Sure~Cool®... and at 4500-6500 for a new unit... Sure~Cool® for the WIN!!!

You will have flow that can circulate heat. Our bypass kicks in via flow rate vs pellet and a stuck pellet becomes a Cork. Restrictions and flow create pressure we use the differential to our advantage and if you bought ours you have that advantage. Ranges cold 130-160 when warm.

Yes they fit gen 1, gen 2 and gen 3

thank you for using the STL020 on the 6R fords. And, I do understand your good intentions to save your customer a buck, so on most of the GM styles, most are stuck to some degree. how many have you pulled out and tested to see if they were stuck? our results out of 25...were 19 stuck or not fully opened. Easy test; just drop them in boiling water or use an oven at 220 deg. you will see why they need replaced and corking them...get a savvy customer who has knowledge of the problem and someone corked the block and the transmission smokes, what's your explanation? remember you are BLOCKING a factory passage, that was in use from the factory and is not after YOU blocked it. extra credit: use a Sure~Cool and take a pair of vise grips and clamp one rubber cooler line closed and go drive the vehicle. now do it with your cork...wait you better not. YOU WILL HAVE NO FLOW, with the Sure~Cool installed ours still flows to save you some parts to build. its that simple. I do thank you for seeing the benefits on the other ones you do install. as an X shop owner for less than a dinner for 4 at MacDonalds, why take the chance? Just 1 6L80 you charge (lets say appx 3500-4000 per unit) if it CB's (for the 2 grand in out of pocket in shop owner costs) you could have put on appx 40 free STL010's to help your customers and save your unit. all I'm saying is... all it takes is one. "Why take the chance" with respect. RBW

no it does not affect computer settings nor the PCM / ECM.

If it's got the block with the snap ring than yrs. 6L and 8L

we have it on several and all are steady around 165 ish but just regular driving not towing, towing will show higher and if you need to add a 2nd aux. cooler. you should have a 2nd one on it if you had the tow package.

We have been updating uses / applications and are bringing more of them in the future. The majority of the Larger 90's do not have them, if you follow some of the older versions of the vids that are circulating, it's not as clear on exact uses, but what is stated is to see visually, what one looks like and where they are located and how quickly you can install them (if you have one on it or in your particular case not) the 6L90 has a junction block on the side of the trans where the lines connect, some may have them in a separate block in the lines up under the batt tray also. We're just trying to show our product vs shoving a bolt in and blocking flow. I do know the 2500 and 3500 if it was ordered for a cold climate and Canada production could have one up on an additional cooler / heater and ours would replace that type but out of the handful of customers up north we have gotten no reports that theirs isn't on it, the Allison's for example incorporated it in only 2017-2019 the RPO code is L5P and we found that after the early videos aired. It's a work in progress and hope you understand the product. I have talked about making a add on for the rest of the 6L90 crowd myself included, I have a 2015 MH and want it on that so maybe in the future but the cost would more expensive as we would have to manufacture cooler blocks at our plant and the costs for manufacturing it would be out of the ball park unless we had mass qtys. I do appreciate your comments and feedback, we want to let everyone know that if you do have it on your transmission in a factory set up, the sooner you install our sure~cool® system the less chance a stuck pellet ruins your transmission.

Also if you can pm me a way to follow up, we released the new magazine adverts explains it more detail and which units. So I can send you that in a PDF? Sorry for any inconveniences that may have incurred. If your having problems returning one you purchased to a vendor, I can clear that up too. Just let us know.

@@superiortransmissionpartsi5357 Yes, I did purchase one of your Sure-Cool STL010 bypass kits on ebay from a seller named "transmissionjobber" on 1/30/22. I requested a return/refund from the seller explaining that I had made a mistake and didn't realize my 2016 GMC Sierra 2500HD did NOT have a thermostat block. I provided photos of my transmission showing there was no thermostat block present. Still, the seller declined my return request. Now I have a new & unused STL010 Bypass Kit which I paid $46.26 (tax included) setting in my garage. If you could, I would really appreciate your help in addressing this matter. Thank you.

@@scshufran251 you need to send me a copy of the invoice and I'll take it from there. They don't ring a bell as an authorized distributor, and since it's our network of distribution I'll find out why they didn't take it back and issue a refund. If you can scan it to me at bob.stp@comcast.net I'll address it Monday.

If it's a 6L80E it's in the block on the driver's side above the transmission pan rail it has a 13 mm bolt and a clip on one end.

And it's identical to the one in the video.

10/4. I Think I seen it . Has 2 lines going in but mine looks mighty small I may not have that design . But I'll check again when I get off work

In 2014 some had a small block (thin) 1 in or less thickness. If you don't have the clip on the end then you don't have One.

@@superiortransmissionpartsi5357 10/4

the STL020 fits all the ford external blocks, so that is the part number you need on your vehicle. the STL009 is the ford internal one that goes between the case and valve body on the bigger 6R60 / 6R75 and the 6R80's the STL020 also fits the 8R90's etc. here's the link to the STL020 one click tm one minute tm video on you tube. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-r6OlveOcgv8.html just be advised the STL017 is no longer available its been blended into the STL020 so now one number fits all 3 styles of FORD blocks and some dodge/jeep too.

STL020

Yes no issues

The designed system from the factory is a good system, the type of components used is what's at fault. The thermostatic pellet degrades over heat and time, causing the pellet to stick and malfunction and shuts off cooler flow thus melting down the transmission in some severe cases. Our products do several things. A. Keeps the bypass fully functioning and in tact and not blocked B. Is now Dynamically Active vs the static pellet type. C. Allows full cooler flow on start up and through out operation cycles. D. Allows the bypass to kick in due to a pressure differential from cold (thick viscosity) oil in frozen climates or blockage in the cooler system shutting off cooler flow. D. Easy to install permanent fix. E. Cost efficient, less that 45.00 most distributors. F. Results are immediately visible on the temp gauge. Usually 45 deg cooler then previous design.

You may have some type of cooler blockage. It should be in the 140-160 ish range. Sorry for the late reply we have been on mandatory vacation for the holidays. Contact us thru our website. www.superiortransmission.com

Did you ever get around to a fix? Mine does 160 in the HWY and about 180 in city traffic

You may have a partially plugged rad cooler or aux cooler, on a normal temp day 70deg with full flow the temp should average 160 ish anything different suspect low flow due to blockages in the system.

@@alextrujillo8658 that's normal, you want to see the fluctuations, the main thing is it drops. And gets back down,

Get it to a shop and see if they test flow. Also we have seen some "clear out" over time now that the cooler is flowing full time. debris naturally occur in automatics, when you stop flow it give the debris time to settle and over time restricts flow elevating temps. Also a second cooler in parallel will help at worse case bypass the radiator cooler and run 2 aux coolers for big loads.