Recent News

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Latest Sonnax Webinar Recording & Slides Now Available!

In this just-released webinar presented by Sonnax technical specialist Steve Garrett, you’ll learn ZF6 Gen. 1 and Gen. 2 identification and repair techniques including:

  • Introduction to the ZF6
  • Differences between Gen. 1 and Gen. 2
  • Solenoid and valve operation and diagnosis
  • Valve wear repair techniques
  • Common transmission and non-transmission related issues

Click here to view now!

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Sonnax Closing Early Friday, March 18

Sonnax will be closing at 12:30pm on Friday, March 18, 2016 for a company event. Normal business hours will resume Monday, March 21.


March Transmission Report Newsletter Now Available

Dive in to the latest edition of this free, 8-page newsletter which features hot topics including:

  • U341E/F TCC Slip Diagnosis & Valve Body Repairs
  • Ford 6R140 Zip Kit®
  • 6L80/90 Performance Upgrades
  • Transmission Digest Top 10 Winners
  • 4L60/E Performance Catalog, Vol. 3

Read online now! You can also sign up to receive a hardcopy, or access all previous newsletters here.

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Just Released: 4L60/E High Performance & HD Parts Catalog, Vol. 3

Check out this newly expanded catalog featuring the best upgrades for all 4L60/E rebuild levels, from street enthusiast to extreme racing:

  • Ramp up durability with heavy-duty parts
  • Rule the track with elite racing components
  • Learn killer tips for the best builds
  • View recommended upgrades via handy build charts

Click here to read it online or request a hardcopy today!

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Sonnax Wins Big in Transmission Digest Top 10 Contest

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

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

Top Products

  • Chrysler 47RE/47RH & 48RE
    Smart-Tech® High Capacity Input Shaft & Piston K
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