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Tech Resources

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.

May 26, 2017

Get Rock-Solid Reliability & 20% More Torque Capacity with the Smart-Tech® Overdrive Clutch Housing Kit

Topics: Miscellaneous Rebuilding Tips Transmission Chrysler 66RFE Transmission 65RFE Transmission 68RFE Transmission 45RFE Transmission 545RFE Transmission

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May 09, 2017

Powerglide Racing Rebuild

Gregg Nader

Topics: Diagnostics And Theory Transmission GM Powerglide Transmission

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April 26, 2016

Prevent "Mystery" Powerglide Band Failures by Overcoming the Servo Pin Bias Effect

Topics: Diagnostics And Theory Transmission GM Powerglide Transmission

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February 22, 2016

Eliminate 3-4 Clutch Failure with the Smart-Tech® Input Housing

Topics: Diagnostics And Theory Transmission GM 4L70-E Transmission 4L60 Transmission 4L60-E Transmission 4L65-E Transmission

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December 11, 2015

Introducing the Sonnax 48RE Converted Valve Body

Topics: Miscellaneous Remanufactured Valve Bodies Transmission Chrysler 48RE Transmission 46RE Transmission 47RE Transmission

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October 06, 2015

Protect Against Breakage with the Dodge Diesel Extreme Duty Output Shaft

Topics: Diagnostics And Theory Transmission Chrysler 48RE Transmission

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October 06, 2015

Increase Torque & Load Capacity with Confidence - Install the Dodge Diesel Extreme Duty Intermediate Shaft

Topics: Diagnostics And Theory Transmission Chrysler 48RE Transmission 47RH Transmission 47RE Transmission

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October 06, 2015

Unmatched Durability & Performance with the #1 Dodge Diesel Heavy Duty Input Shafts

Topics: Diagnostics And Theory Transmission Chrysler 48RE Transmission 47RH Transmission 47RE Transmission

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October 05, 2015

AW 55-50/51SN Solenoid Bracket Identification & Installation

Topics: Rebuilding Tips Remanufactured Valve Bodies

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May 22, 2015

Stop 4R70W Drum Failure with the Smart-Tech® Forward Clutch Drum

Topics: Diagnostics And Theory Transmission Ford 4R75W Transmission 4R70W Transmission 4R70E Transmission 4R75E Transmission

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March 09, 2015

GM 6L80 Series Transmission Upgrades & Repairs

Topics: Diagnostics And Theory Transmission GM 6L90 Transmission 6L80 Transmission 6L50 Transmission 6L45 Transmission

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January 05, 2015

How to Vacuum Test Video - Part 3 of 3

Topics: Vacuum Testing Transmission

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January 05, 2015

Vacuum Test Stand Setup & Calibration Video - Part 2 of 3

Topics: Vacuum Testing Transmission

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January 05, 2015

What is Vacuum Testing? Video - Part 1 of 3

Topics: Vacuum Testing Transmission

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December 29, 2014

Sonnax at PRI 2014: Video Featuring Powerglide Oil Pan Kit

Topics: Transmission GM Powerglide Transmission

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October 28, 2014

Easy Pressure Switch Rebuilds for 6L- & Gen. 1 6T-Series Units

Topics: Rebuilding Tips Transmission GM 6L90 Transmission 6L80 Transmission 6L50 Transmission 6L45 Transmission 6T70 (Gen. 1) Transmission 6T75 (Gen. 1) Transmission

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July 15, 2014

Zip Kit® Video - The first step in correcting common shift problems.

Topics: Diagnostics And Theory Transmission

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October 01, 2013

Sonnax Solenoid Wire Connector Retainer Demo Video

Topics: Transmission

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August 20, 2013

Sonnax Power Train Savers® Video

Topics: Miscellaneous Power Train Savers

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June 05, 2013

Sonnax SmartShell® Video

Topics: Rebuilding Tips Transmission

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