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Latest News

March 22, 2017

What's Next for Vacuum Test Plates? Vote Now!

Sonnax develops every new product with you in mind. Over the past year, we’ve released three vacuum test plates – and we want to hear from you about which applications to cover next. 

Which plates would help your shop the most? 
Vote Now!



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March 08, 2017

Sonnax Website Redesign: New Look, Faster Load Times and More

Why did we do this?
Much like we update our cell phones and computers, Sonnax must periodically update its website to keep up with the latest technology. Over the past year, our web team has been hard at work rebuilding the Sonnax website from the ground up to make it faster and easier to use than ever before.

What are the biggest changes?

  • The navigation and various pages have been redesigned to make it easier to find exactly what you’re looking for. All the information is still there, but some of it may be in a slightly different location.
  • Unit pages now feature torque converter or transmission parts – not both. Ford 6R140, for example now has a 6R140 transmission page as well as a 6R140 torque converter page.
  • Tech resources have been consolidated into one convenient location. Now, valve body layouts, vacuum test guides, articles, videos and more can all be found on our Tech Resources page.

Will my bookmarks/links still work?
Links to part pages, product line landing pages and the homepage are still the same. Unit pages and tech resource links, however, have changed due to the updated navigation structure.

  • If you’re looking for a transmission unit, go here.
  • If you’re looking for a torque converter unit, go here.
  • If you’re looking for tech resources such as articles or videos, go here.

I used to place orders through your website...what should I do now?
Contact your Sonnax sales representative.

Do I need a login/Will my old login still work?
No, you do not need a login to access any data on the Sonnax website anymore.

How do I (or my customers) make a suggestion, offer a comment or ask a question about the website redesign?
Contact us! We welcome all questions and feedback.

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March 01, 2017

It’s Snow Plowing Season Again! Understanding 4L80-E Overdrive Roller Clutch Failure

Plow trucks running GM 4L80-E and Ford 4R100 transmissions often suffer from Overdrive roller clutch failure:

  • Understand how and why it happens
  • Learn how to prevent it to keep comebacks away and protect your warranty

Read now.

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Upcoming Events

ATSG Technical Seminar

10220 Regency Circle, Omaha, NE

April 01, 2017, 9:00AM - 4:00PM

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ATRA Technical Seminar

2020 E American Blvd., Bloomington, MN

April 08, 2017, 8:00AM - 4:00PM

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ATSG Technical Seminar

6120 Peachtree Dunwoody Rd., Atlanta, GA

April 08, 2017, 9:00AM - 4:00PM

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Sonnax Industries is an Employee-Owned Company

Sonnax’s mission is to be the leading supplier of innovative drivetrain components to the automotive aftermarket by developing quality solutions that serve customer needs.