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Sign up today for the Sonnax Transmission Report Newsletter!

The Transmission Report is a free, 8-page newsletter featuring exciting new Sonnax products, in-depth tech articles with valve body diagnostics, rebuilding tips and tricks from the pros, special case studies and more. This valuable newsletter is mailed three times a year to U.S. residents, and can also be read online.

Continental U.S. only.

Transmission Report Vol. 4, No. 1

Newsletter Archive

June, 2015

Transmission Report: Learn LIVE with Sonnax!

  • 5R110W Pump Problems & ID
  • Ford 6R140 Valve Body Repairs
  • Chrysler Switch Valve Reaming Update
Read Online

February, 2015

Transmission Report: Sometimes the Best Tools are FREE!

  • NEW! Webinars & Videos
  • Pressure Switch Kits & Zip Kits®
  • Plow Repairs & Upgrades
Read Online

October, 2014

Transmission Report: Money in the Bank - The GM/Ford Joint Venture

  • GM/Ford Joint Venture
  • Sonnax at 2014 Expo & SEMA
  • 1st Gen. 6T40/45/50 Sonnax Solutions
  • Troubleshooting 55-50SN Tip
Read Online

July, 2014

Transmission Report: Hit a Home Run Against 55-50/51SN Problems

  • 55-50/51SN Solenoids & Zip Kit®
  • New Transmission Parts Catalog
  • Sonnax Roadshow 2014
  • Honda 4/5 Speed Valve Identification Tips
Read Online

March, 2014

Transmission Report: Top Repair Solutions for All Rebuild Levels

  • Genuine Sonnax Kits for All Rebuild Levels
  • A340E/F Solutions & Valve Body ID Guide
  • Tech Tip: 46-47RH/RE vs. 48RE Sure Cure Kits
  • NEW Vacuum Test Guides & Forward Clutch Drum
Read Online

August, 2013

Transmission Report: Always Ask for Genuine Sonnax Parts

  • Genuine Sonnax
  • Vacuum Testing Guides
  • GM 6L45-6L90 Solutions
  • New Transmission Kits
  • Reamer Care
Read Online

March, 2013

Transmission Report: Performance Rebuilds & Converters

  • Performance Rebuilds & Converters
  • Honda/Acura 4/5-Speed Solutions
  • New Transmission Parts
  • 2013 Roadshow Schedule
Read Online

October, 2012

Transmission Report: New Sonnax Improvements for the 4L60 3-4 Clutch

  • Smart-Tech™ Input Housing
  • Aisin AW 450-43LE Valve Kits
  • Solenoids & Core Return Program
  • NEW Zip Kits, Bearing Notice
Read Online

March, 2012

Transmission Report: Which Kit is Right for Your Rebuild?

  • Which Sonnax Kit is Right for Your Rebuild?
  • Sonnax Roadshow 2012
Read Online

October, 2011

Transmission Report: Overheating Honda Converters, Vacuum Testing and More

  • Fixing Overheated Honda Converters
  • Vacuum Testing Made Easy
  • Sonnax Solutions for Every Rebuild
Read Online

July, 2011

Transmission Report: Hitting the Road with the Sonnax Roadshow

  • The Sonnax Roadshow
  • The Ins & Outs of Reaming
  • New Fixes: ZF6HP19/26/32 & More
Read Online

February, 2011

Transmission Report: Line Pressure Booster Kits and More

  • Line Pressure Booster Kits
  • Powerglide® Gear Sets & Assemblies
  • Aisin AW TR-60SN Valve Kits
Read Online

October, 2010

Transmission Report: SmartShell® and More

  • Introducing the Sonnax Smartshell®
  • New Sonnax Transmission Catalog
  • Jatco/Nissan CVT Solutions
Read Online

May, 2010

Transmission Report: The Art of Proper Bore Reaming

  • The Art of Proper Bore Reaming
  • Mercedes 722.6 Valve Body Kits
  • Chrysler High Performance
Read Online