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May 29, 2018 Tasc force meeting may 2018

Sonnax Hosts Annual TASC Force Meeting

The Sonnax TASC Force recently got together for its annual meeting to discuss new product needs for the market. The meeting was held May 18-19 at the Sonnax New Jersey facility and the Warwick Rittenhouse Square Hotel in Philadelphia, PA. In attendance were 29 TASC members, representing 17 shops from six different countries.  

The meeting kicked off with a tour of Sonnax following a briefing by plant manager Mark Spaseff and remanufactured valve body product line manager Maura Stafford.  The tour focused on six major stations in the plant: receiving, core prep, reaming, building, testing and shipping. The re-occurring topic heard at all stations was the Sonnax commitment to safety, quality, delivery and continuous improvement. “We have been working hard to improve our products and service and are very excited to share our process improvements with the TASC Force,” said Spaseff.

After the tour, the group returned to the hotel where they were welcomed by Sonnax Transmission Company president Steve Boyer.  Boyer thanked everyone for attending the meeting and expressed his excitement to be there as he’s heard so much about what TASC means to Sonnax, and how it affects the new product development needs of the industry.

Meeting topics included new product suggestions, Sonnax quality, and industry trends that the automatic transmission aftermarket is facing today.  

Former President & CEO Tommy Harmon
Former President & CEO
Tommy Harmon

This year, more than 90 new product ideas were submitted, of which the group then votes on based on their importance to rebuilding today’s transmissions. Sonnax Vice President of product line management Steve Jaussaud noted the progress that his team has made; nine out of the 15 TASC picks from previous meetings are now available from Sonnax, and the other six are currently in development for future release.

A highlight of the TASC meeting is always the Friday night dinner where members have the opportunity to get together to discuss business and reminisce about meetings past. This year was especially notable when Steve Boyer presented former president and CEO Tommy Harmon with a framed Sonnax license plate from the traveling tech van. Boyer thanked Tommy for his vision and dedication to the TASC Force, and committed to keeping the mission alive in the future.

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May 24, 2018

Updates to Privacy Policy

We’ve updated our Privacy Policy in light of the new data protection regulations in the European Union. Our update includes more detailed explanations of the data we collect and how we use it. This update takes effect on May 25, 2018. We understand that protecting your privacy is essential, and we’re committed to making sure you understand what we do with the information you’ve entrusted to us. Review the updated policy here.

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May 03, 2018 Sonnax on ig

Follow Sonnax on Instagram!

Exciting news – Sonnax is now on Instagram! Follow us @sonnaxtransmission for a chance to win a new T-shirt (see page for details).

Connect with us via all of your favorite social media platforms, plus sign up for Sonnax e-news for the latest updates delivered straight to your inbox:

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April 04, 2018 Marmon acquisition tommy and steve

Sonnax Joins Marmon Via Asset Sale

Sonnax Industries, Inc. is pleased to announce the sale of its assets to a newly-created subsidiary of Marmon Holdings, Inc., a Berkshire Hathaway company. The new company will operate as Sonnax Transmission Company. Terms of the acquisition were not disclosed.

As an employee-owned company, the sale was overwhelmingly approved by vote of Sonnax employees. Steve Boyer becomes President of Sonnax Transmission, and will work closely with Sonnax Industries CEO Tommy Harmon to ensure a smooth transition into Marmon.

“Joining Marmon affords Sonnax employees the support and stability of a very successful global organization while maintaining its homegrown, entrepreneurial feel,” Harmon said. “Above all, this expands what we can deliver to our customers, so our future is bright.”

Marmon Holdings comprises about 175 independent manufacturing and service businesses with facilities in 23 countries and total revenues exceeding $7.7 billion in 2017. Marmon is a subsidiary of Berkshire Hathaway, one of the world’s largest, most successful, and most highly respected companies.

Sonnax Transmission joins Marmon’s Automotive Aftermarket group, whose businesses are well known for providing innovative, engineered solutions for aftermarket installers.

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March 28, 2018

Important Notice Affecting Normal Business Hours

Upcoming events require changes to our normal business hours:

  • Friday, March 30: 
    Due to the end of the fiscal year, the warehouse will be closed to shipping after 1 p.m., but our sales team will still be available to quote and provide information on product availability to you.
  • Monday, April 2: 
    Sonnax will be closed from 8:30 a.m. until noon for a company-wide event. Normal business hours will resume after that.

We apologize for any inconvenience this may cause. Please contact your Sonnax sales representative with any questions, or to place orders in advance. As always, we strive to provide the best service and support on order fulfillment, and we truly appreciate your business.

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March 22, 2018 Sonnaxfanfriday t shirt

Enter to Win a New Sonnax T-shirt!

Submit your photos for a chance to win a Sonnax performance T-shirt and be featured on our Facebook page! A new winner will be chosen every Friday.

Click here for details and enter now.


March 15, 2018 Sonnax performance t

Introducing the New Sonnax Fan Store

You’ve asked how to get those awesome Sonnax T-shirts you see all over the place...and we heard you loud and clear. Now, in addition to entering our weekly Facebook giveaways, you can order your very own Sonnax gear online.

Choose from two cool designs available as a T-shirt or hoodie. All proceeds benefit Our Place Drop-in Center in Bellows Falls, VT.

Click here to shop now!


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March 14, 2018 Td top 10 2018

Sonnax Wins Big in Top 10 Contest

Every year, Transmission Digest accepts nominations for the top 10 products and tools in the powertrain aftermarket. Readers vote for their favorites to determine the winners. 

The results are in: Sonnax won seven top product awards, plus a top tool award! Thank you all for your trust and support of Sonnax products – we couldn’t have done it without you!

7 Top Products

  • Chrysler 45/545/65/66/68RFE
    Smart-Tech® Overdrive Clutch Housing Kit: #72960-06K 
    Overcome the leading cause of Overdrive burnup and keep hardworking Dodge trucks on the road.
  • GM 4L60 & 4L60/65/70-E
    Heavy Duty 3-4 Clutch Backing Plate Kit: #74140-01K
    Significantly reduce backing plate flex for increased 3-4 clutch durability.
  • GM 4L60/65/70-E
    Performance Pack: #HP-4L60E-01
    A must-have for any heavy-duty vehicle and the very best foundation for racing.
  • GM 4L80/85-E
    Smart-Tech® Overrun Clutch Valve Kit: #34200-40K
    Outsmart overdrive roller clutch failure and protect your warranty.
  • GM 4T60/65-E
    Extended Length Forward Band Servo Pin Kit: #84571-01K
    Prevent burnt, broken or slipping forward bands.
  • Chrysler & Ford
    The Sure Cure® Kits
    Get everything you need to restore and enhance transmission performance in high-mileage units in one place, at one cost.

Top Tools

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March 09, 2018

Shipping Schedule Notice

Sonnax is conducting a physical inventory on Thursday, March 22 and Friday, March 23. Our warehouse is closed to shipping on these days, but the sales team will be available to quote and provide information on product availability to you. Shipping will resume on Monday, March 26.

We apologize for any inconvenience this may cause. 

Please contact your Sonnax sales representative with any questions, or to place orders in advance of our shutdown. As always, we strive to provide the best service and support on order fulfillment and we truly appreciate your business.

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February 20, 2018 4l60 e video thumbnail

Harness that Horsepower! Your Guide to a Sonnax 4L60/E Level 3 Performance Build

The GM 4L60/E series are great transmissions used for decades in performance vehicles, but their reputation has somewhat suffered because old-school mods never significantly improved durability. Especially in extreme racing applications, modern horsepower demands modern parts, and that's what Sonnax delivers.

Watch this video to see how to transform a 4L60-E, 4L65-E or 4L70-E into a top-tier performance transmission with Sonnax Level 3 build components. 

Watch Now


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