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Latest News

February 20, 2018

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. 

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February 14, 2018

Driveshaft Winter Weather Checklist & Upgrades

Old man winter is here for the long haul. Is your driveshaft assembly strong enough to last? Plow through this winter weather checklist to ensure it's ready to take on the toughest driving conditions.

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February 13, 2018

Check Out the Latest Transmission Report Now!

In this edition, you'll learn new tech tips, get the scoop on the latest transmission products and more! Featured topics include:

  • Small Changes Make a BIG Difference for GM 6T70/75 Gen. 2 Units
  • Outsmart OD Roller Clutch Failure with the Smart-Tech® Overrun Clutch Valve Kit
  • 6F35 Zip Kit® for Gen. 1 & 2 Units
  • Tech Team Shop Talk: Help Us Help You

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Upcoming Events

ATRA Technical Seminar

5400 John Q. Hammons Dr. NW, Concord, NC

February 24, 2018, 8:00AM - 4:00PM

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ATSG Technical Seminar

400 Park Blvd., Itasca, IL

February 24, 2018, 9:00AM - 4:00PM

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ATRA Technical Seminar

28 Patriot Place, Foxboro, MA

March 03, 2018, 8:00AM - 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.