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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 25, 2017

Chrysler 45RFE, 545RFE, 65RFE, 66RFE, 68RFE Valve Body Layout

Topics: Transmission Chrysler 66RFE Transmission 65RFE Transmission 68RFE Transmission 45RFE Transmission 545RFE Transmission

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May 25, 2017

GM 6T30, 6T40 (Gen. 2), 6T45 (Gen. 2), 6T50 (Gen. 2) Vacuum Test Guide

Topics: Vacuum Test Guides Transmission GM 6T40 (Gen. 2) Transmission 6T45 (Gen. 2) Transmission 6T50 (Gen. 2) Transmission 6T30 Transmission

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May 09, 2017

Level Up Powerglides with Sonnax

Topics: Transmission GM Powerglide Transmission

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May 09, 2017

Powerglide Racing Rebuild

Gregg Nader

Topics: Diagnostics And Theory Transmission Powerglide Transmission

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May 05, 2017

Chrysler 45RFE, 545RFE, 65RFE, 66RFE, 68RFE Vacuum Test Guide

Topics: Vacuum Test Guides Transmission Chrysler 66RFE Transmission 65RFE Transmission 68RFE Transmission 45RFE Transmission 545RFE Transmission

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April 28, 2017

4L60/E Performance & Heavy-Duty Transmission Build Charts

Topics: Rebuilding Tips Transmission GM 4L60-E Transmission 4L60 Transmission 4L70-E Transmission 4L65-E Transmission

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April 12, 2017

4L60-E Valve Body Identification

Topics: Identification Guides Transmission GM 4L60-E Transmission

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March 29, 2017

Transmission Report Newsletter

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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February 08, 2017

Driveshaft Winter Weather Checklist & Upgrades

Topics: Rebuilding Tips Driveline

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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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January 17, 2017

Torque Converter Journal: There's a New Hub in Town

Topics: Torque Converter Journals Torque Converter Chrysler Ford GM 66RFE Torque Converter 8L90 Torque Converter 6R140 Torque Converter

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December 07, 2016

ZF8HP45/ZF8HP70 Vacuum Test Guide

Topics: Vacuum Test Guides Vacuum Testing 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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