Sonnax 6L80/90 Torque Converter Heavy-Duty Builds Explained

[@richardteresacricheducatio3542]

Really enjoyed the videos. Learned a lot of information. Thanks a lot.

[@sonnax]

So glad to hear that, thanks so much for the wonderful feedback!

[@weldean46]

nice upgrades for the 6l units god knows they need it, hello from the great northwest

[@sonnax]

Thank you for your comment, and hello to you, too!

[@LSMykie]

I can’t wait to build a 1000hp 6l80e I’ve already found all of the sonnax part numbers that I will need. ❤❤#lovesonnax

[@sonnax]

Glad to hear it! Thanks so much for your support, and let us know how everything goes.

[@LSMykie]

@@sonnax will do!! I also pre ordered my 4L60e gm054-HD valve body 6months ago through summit and it’s expected to ship 1-7-24. I’ve been anticipating it’s delivery

[@bigpatsunderthehood5552]

Great job and much needed support and information

[@bigpatsunderthehood5552]

Thanks for the advice and information

[@davom5858]

Well done. Concise and one of the best, if not the best informative, instructional videos I've seen. Thank you.

[@sonnax]

Thanks so much for the great feedback, we greatly appreciate it!

[@wandabuchholz6508]

Why are the owners fixing gm's problems, it should be up to gm gmc to fix the junk .

[@Resistculturaldecline]

Especially across the big 3 domestics, the overcharged customer is the new R&D testbed.

[@nathantjapkes2155]

Always has been ​@@Resistculturaldecline

[@prevost8686]

Been an Asian import technician for 30 years and unfortunately it’s not just the “Domestic” manufacturers building garbage these days. Gone are the days when you could purchase a Honda or Toyota and expect 200K miles of relatively trouble free service. I have customers that ask me what new vehicle they should buy and I don’t have an answer for them anymore. They all are building garbage that is designed to fail.

[@alexjohnsten8803]

Look at the cp4 pumps in both gm and Ford we are getting screwed

[@schowers]

Because they're never gonna fix it, their job is to sell you a new product so they don't engineer anything to last

[@bobsmith7396]

where can one get, as mentioned, one assembly and ready to go ? live in California- help ?

[@craigquann]

I'm looking at having to rebuild my 6l80. Pretty sure the converter is failed/failing. I'm hoping it's not to the point of catastrophic. The guy doing the rebuild is a well known local mechanic and racer. So I'm hoping that he upgrades mine. Cuz I don't want to have to pull it out again.

[@michaelashby868]

@sonnex I put a 6l in my 2011 silverado 1500. I have 250000 miles on the truck. The transmission shifts good. I wanted to upgrade my torque converter. What do you suggest?

[@sonnax]

Our product support team would be happy to help you. They can be reached directly via email at [e-mail], or phone at [phone] ext. 398. Thanks for reaching out!

[@marekkrepa9982]

My mechanic after torque converter changed to billet one said no programming needed. Is he right or should I deal with other shop. 2017 sierra with 6l80

[@sonnax]

Our product support team would be happy to help you. They can be reached directly via email at [e-mail], or phone at [phone] ext. 398. Thanks for reaching out!

[@MonzaRacer]

NO! I don't care what they believe. Keeping the stock allowed slip BS is just making life harder on the Sonnax upgraded converter. EVERY good builder will block the appropriate ports to force TCC to not unlock or slip. Its better if it goes in walks up unlocks locks up unlocks. And also a good practice on these transmissions is we go in and program out the lock up on first through fourth and only lock up in 5th and 6th on daily driver trucks and fourth fifth and sixth on towing vehicles. Because this slippage that GM put in there is to make sure you don't feel that torque converter lock up but that's also what makes that front cover grind down to metal and overheat and warp that front sheet metal cover and if they had built a billet style front cover for the converters they can get away with it maybe but in all actuality you're going to be much happier if you find a good person who knows how to tune a 6L 80 or a 6l90 and eliminate that slippage apply pressure just a little bit to make sure it's a good solid hold without overloading anything. And if they're really good they'll go in and tune your shift points so that your transmission gives you a nice firm but not radical shift where you feel one two three four five six and it holds better and doesn't burn itself up.

[@shaun4bigblocks993]

OK, I get it that Sonnex does not assemle these parts, but who does Sonnex use, meaning what shop does Sonnex have re-assemble, weld, and most importantly balance the converters Sonnex uses for in-house R&D? And if you won't tell me, what town and state is your business located in meaning where this video was filmed? Thanks!

[@SKMYF]

Go on their website, and you will see their authorized dealers.

[@truckingjamaicans5045]

Hey do you guys work on lexus transmission? For example like from 2006 to 2012 like the a960e n the aa80e?

[@sonnax]

No, as we are not transmission rebuilders. We design and manufacture top-of-the-line parts for transmissions, torque converters, and drivelines. Feel free to visit our website to learn more: www.sonnax.com. You can see what's available for the A960E here: www.sonnax.com/units/25-a960e. Hope that helps. Thanks for reaching out, and have a great day!

[@mikeyshouseofbrakes8463]

Sonnax should make the torque converters for GM

[@YaksAttack]

No, that'll cost GM an extra $3.24 per vehicle! Nevermind that the cost of vehicles keeps rising thousands of dollars year over year.

[@justinalger9325]

Would the front cover upgrade fix the issues with a 2020 Silverado that has torque converter shudder and stuff?

[@sonnax]

Our product support team would be happy to help you. They can be reached directly via email at [e-mail], or phone at [phone] ext. 398. Thanks for reaching out!

[@ferberb9662]

Do you as the a company do this service of taking apart and welding back and balancing so I don’t need to take this job to a local or out of state shop and do a half ass job?

[@sonnax]

No, we do not. We design and manufacture top-of-the-line parts for torque converters, transmissions, and drivelines. Feel free to visit our website to learn more: www.sonnax.com/. Thanks for reaching out, and have a great day!

[@sarsavage]

How much does a performance converter for 6l90e 3,000 to 3200 cost

[@sonnax]

Hello, we do not offer complete converters, we design and manufacture parts/kits for them. Feel free to check out what we have to offer (including performance converter kits) right here on our website: www.sonnax.com/torque_converter. Thanks for reaching out, and have a great day!

[@RandyJoyce-bk1nf]

Does Sonnax make complete converters?

[@sonnax]

No, we design and manufacture parts for torque converters, transmissions, and drivelines. Feel free to check out our website to learn more at www.sonnax.com. Thanks for reaching out, and have a great day!

[@RandyJoyce-bk1nf]

@sonnax Thank you

[@brianross4057]

The Modified with lots of Sonnax parts 4l60e I have behind my LS1 has a 300mm 3 Pad converter TAG: TMBX 2420-6642, would it be compatable with what your showing here, I need a heavy duty low stall TQ for my 4x4.

[@sonnax]

The converter kits and modifications in the video only work for 6L80 and 6L90 units. The 300mm converters in the 4L60E’s don’t suffer from the same converter failures that the 300mm units see in the 6L units. For your 4L60E application, a converter builder should be able to set you up with a low stall 300mm TMBX style converter with a forged cover. The Sonnax part number for a forged cover for a TMBX converter is GM-CC-17: www.sonnax.com/parts/4589-front-cover. Hope this helps, and thanks for reaching out!

[@brianross4057]

@@sonnax Thank you so much for replying to my question, The LS1 4l60e in question is out of a 2004 Australian Holden Commodore and fitted to a 94 Toyota Hilux LN106 using an adapter kit mating the 4l60e to the Toyota transfer case, The Hilux is setup with a Touring Canopy and loaded up for extended living in the outback and weighs in at around 2400kg / 5300lb travelling in some very hot and rugged conditions that puts a lot of stress on the transmission and converter so a recoed one is on the list to be done. Cheers from downunder.

[@DR-um2bv]

How can i just buy it all ready to go

[@sonnax]

We don't offer complete torque converters, we design and manufacture top-of-the-line parts for them. Feel free to reach out to our product support team with any questions. They can be reached directly via email at [e-mail], or phone at [phone] ext. 398. Thanks for reaching out!

[@Steven-gv1ke]

​@@sonnax that's a mistake... Just saying.

[@rafaelitogoty5741]

Hi I need 1 my ford 150 3v 2004,,,,I need info ,,,❓

[@sonnax]

Our product support team would be happy to help you. They can be reached directly via email at [e-mail], or phone at [phone] ext. 398. Thanks for reaching out!

[@CALIBREDTEXASFED619]

Getting a new transmission with the upgraded billet torque converter. GM dropped the ball on these cars/trucks

[@arthercasillas2755]

DOD , VVT , and the transmission slip ? All because they want to make an 8 run like a 4. With one MPG GAIN. ludicrous . Delete everything build it right.