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More than Great Products

Created by rebuilders, for rebuilders, Sonnax Technical Resources contains hundreds of valuable articles, videos and more to help you find the best solutions to everyday automotive issues. Whether you’re researching a specific problem with a unit that’s just come into your shop or seeking rebuilding tips and tricks from the pros, this section is where you can easily search 10+ years of free Sonnax tech for answers.

Check back often to see what’s new, or connect with Sonnax to be the first to know about the latest tech resources.

March 29, 2017

Transmission Report: Sonnax Voted Tops for Parts & Tools!

Topics: Transmission Report Newsletters Transmission GM 4T65-E Transmission 4L70-E Transmission 4L60-E Transmission 4L65-E Transmission 4L80-E Transmission

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March 28, 2017

Stop 4T60-E, 4T65-E Case Wear, Band Slippage & Breakage with a Longer Servo Pin

Jim Dial

Topics: Diagnostics And Theory Transmission GM 4L60-E Transmission 4L65-E Transmission

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March 28, 2017

CVT Success: In-Vehicle Isolation of Common Problems

Bob Warnke

Topics: Transmission Jatco Nissan JF015E (RE0F11A) Transmission JF011E (RE0F10A) Transmission JF010E (RE0F09A) Transmission

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March 02, 2017

SonnaFlow® Chart: REOF06A CVT - ‘07 Dodge Caliber

Topics: Sonnaflow Charts Transmission

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March 02, 2017

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

Jim Dial

Topics: Diagnostics And Theory Transmission Ford GM 4R100 Transmission 4L80-E Transmission

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February 08, 2017

Identifying Allison 1000/2000/2400 Valve Bodies

Topics: Diagnostics And Theory Identification Guides Remanufactured Valve Bodies Transmission Allison 1000/2000/2400 Transmission

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January 30, 2017

Plow Truck Transmission Repairs & Upgrades

Topics: Rebuilding Tips Transmission

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January 25, 2017

Understanding & Overcoming the Powerglide Servo Pin Bias Effect - Part 2

Topics: Diagnostics And Theory Transmission GM Powerglide Transmission

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December 07, 2016

ZF8HP45/ZF8HP70 Vacuum Test Guide

Topics: Vacuum Testing Vacuum Test Guides Transmission ZF ZF8HP70 Transmission ZF8HP45 Transmission

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November 29, 2016

“8” Ball, Center Pocket? Location and Function of New #8 Checkball for 6L80/90

Jim Dial

Topics: Diagnostics And Theory Rebuilding Tips Checkball Locations Transmission GM 6L90 Transmission 6L80 Transmission

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November 14, 2016

Chrysler 46RE, 46RH, 47RE, 47RH Vacuum Test Guide

Topics: Vacuum Testing Vacuum Test Guides Transmission Chrysler 46RH Transmission 47RH Transmission 46RE Transmission 47RE Transmission

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November 14, 2016

Ford 4R70E, 4R70W, 4R75E, 4R75W, AODE Vacuum Test Guide

Topics: Vacuum Test Guides Vacuum Testing Transmission Ford 4R75W Transmission 4R70W Transmission AODE Transmission 4R70E Transmission 4R75E Transmission

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November 09, 2016

A New Path for ZF

Topics: Diagnostics And Theory Transmission ZF ZF8HP70 Transmission ZF8HP45 Transmission

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October 17, 2016

Transmission Report: Turn Your ZF6 Solenoid Cores into CASH!

Topics: Transmission Report Newsletters Transmission ZF ZF8HP70 Transmission ZF8HP45 Transmission

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August 25, 2016

Sonnax Webinar Part 2 of 2: A Look Inside Dodge TorqueFlite® 8 (ZF8) Transmission & Torque Converter

Topics: Webinars Transmission ZF ZF8HP45 Transmission

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August 11, 2016

Sonnax Webinar Part 1 of 2: Dodge TorqueFlite® 8 (ZF8) Features & 2015 Challenger Test Drive

Topics: Webinars Transmission ZF ZF8HP70 Transmission ZF8HP55 Transmission ZF8HP45 Transmission

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July 27, 2016

Properly Diagnose a 722.6 Shudder in Vehicles with MDS System Engines

Ed Lee

Topics: Diagnostics And Theory Transmission Torque Converter Mercedes 722.6 Transmission 722.6, 722.9 Torque Converter

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July 14, 2016

Transmission Report: "See" More, Spend Less with Vacuum Testing

Topics: Transmission Report Newsletters Transmission

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June 29, 2016

“'Tween:” How to Identify the ZF6HP Series Valve Body that Bridges the 1st & 2nd Generation Designs

Maura Stafford

Topics: Diagnostics And Theory Transmission ZF ZF6HP19 Transmission ZF6HP26 Transmission ZF6HP32 Transmission ZF6HP21 Transmission ZF6HP28 Transmission ZF6HP34 Transmission

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June 22, 2016

ZF6HP19/26/32 (Gen. 1) with 053 Separator Plate Vacuum Test Guide

Topics: Vacuum Test Guides Transmission ZF ZF6HP19 Transmission ZF6HP26 Transmission ZF6HP32 Transmission

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