July 30, 2019
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.
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Enter a Sonnax part number below to view its instructions. For general reaming instructions, click here.
July 16, 2019
Eliminate Powerglide Input Shaft Failure with the Sonnax Big Shaft System
December 06, 2018
Stop Chasing AODE, 4R70W Direct Clutch Drum Problems
October 24, 2018
Eliminate Leakage & Optimize Performance with Sonnax O-Ringed Valves
October 24, 2018
Clean Up Your Shifts with Sonnax Line Pressure Booster Kits
February 08, 2018
Harness that Horsepower! Your Guide to a Sonnax 4L60/E Level 3 Performance Build
September 27, 2017
Sonnax Roadshow Part IV: Additional Valve Body Repair Issues
Randall Schroeder
September 27, 2017
Sonnax Roadshow Part III: Valve Body Reaming
Randall Schroeder
September 27, 2017
Sonnax Roadshow Part II: Isolating the Problem – Methods to Identify Bore Wear
Randall Schroeder
September 27, 2017
Sonnax Roadshow Part I: Diagnostic Challenges – Where Do You Start?
Randall Schroeder
August 18, 2017
Reamer Cleaning & Care Techniques
August 15, 2017
Basic Installation Steps for the Smart-Tech® Overrun Clutch Valve Kit
May 26, 2017
Get Rock-Solid Reliability & 20% More Torque Capacity with the Smart-Tech® Overdrive Clutch Housing Kit
May 09, 2017
From the Bench: Building a World‑Class Powerglide Racing Transmission
April 26, 2016
Prevent "Mystery" Powerglide Band Failures by Overcoming the Servo Pin Bias Effect
February 22, 2016
Eliminate 3-4 Clutch Failure with the Smart-Tech® Input Housing
December 11, 2015
Introducing the Sonnax 48RE Converted Valve Body
October 06, 2015
Unmatched Durability & Performance with the #1 Dodge Diesel Heavy Duty Input Shafts
May 22, 2015
Stop 4R70W Forward Drum Failure with a Sonnax Smart-Tech® Drum
March 09, 2015