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TRNW, Transmission Rebuilders Network Worldwide

is an international network of transmission technicians, transmission rebuilders, and transmission shop owners who discuss every aspect of running a transmission repair facility. TRNW members interact on everything from rebuilding tips, diagnostic help, troubleshooting, parts locating, and the art of operating and managing a full-service transmission shop.

TRNW is like having hundreds of transmission rebuilders at your door step to answer your questions. No job is too difficult! TRNW members unite together to help solve the most complicated problems from today's complex, fully electronic, automatic transmissions. Join TRNW today and see what your missing! It's like a seminar in your mail box every day!

TRNW has the most active and the most informative tech forum in the transmission industry! Our members rave about how great our service is, and you will too! Be sure to join TRNW today!

Becoming a TRNW member is Easy and Safe! We use the latest "Verisign" secure encryption technology available. View our Privacy Policy, and our Refund Policy. All participants of this group must agree to the terms of our Terms of Use Agreement.

Transmission Industry News

  • Central Valve Bodies is now selling drop-in valve body components and kits! You can sign up to get updates about new product releases. Top quality valve body replacement parts - specializing in drop in applications, no reaming necessary! Learn more
  • Sonnax introduces two new GM case saver retainers that protect case lugs from blowout while allowing the intermediate band to be retained.
    · Fits TH400 & '98-Earlier 4L80-E
    · Fits '99-Later 4L80-E
  • Raybestos® Powertrain announces a new Ford 10R140 6.7 Liter Diesel GPZ Friction Clutch Pack Module, designed for enhanced performance beyond OE capabilities. Learn more
  • TRNW launched it's new iOS App! Now available in the Apple App Store!
  • Sonnax announces a new, drop-in Zip Valve™ signal accumulator piston kit that allows GM 8L45/90 bores to be reconditioned quickly and easily with no reaming required.
  • Raybestos® Powertrain announces a new Ford 10R140 6.2 & 7.3 Liter Gas GPZ Friction Clutch Pack Module, designed for enhanced performance beyond OE capabilities. Learn more
  • The NEW 2020 Dura-Bond Transmission Catalog is now available for download. CLICK HERE to download!
  • Dura-Bond decided to put this video together to address some of the questions and concerns that we have heard from you guys at the transmission seminars, trade shows, and even from this group.
    Transmission Fixes - "You Asked, We Listened"
  • Sonnax releases a new, drop-in Zip Valve™ O-ringed end plug kit that puts an end to leaks, restores hydraulic integrity and renews shift operation in GM 8L45/90 transmissions.
  • Here is a "Teaser" for the upcoming Dura-Bond Video Series "Race Proven...Time Tested",   Hosted by William Dolak! CLICK HERE
  • Raybestos® Powertrain Receives 2017 GM Supplier Quality Excellence Award! Click Here for more information
  • TRNW launched it's new Android App! Now available in the Google Play Store!
  • Raybestos® Powertrain announces a new Ford 10R60 Transmission GPZ Friction Clutch Pack Module, designed for enhanced performance beyond OE capabilities. Learn more
  • Sonnax unveils a patent-pending, drop-in Zip Valve™ lube on demand valve kit that maintains the integrity of the OE design of double-flow at increased pressure, while mitigating any existing bore wear and preventing future pump casting degradation in GM Gen. 3 6T40 transmissions.
  • Valve Body Pro is proud to introduce their latest innovation: Rebuilt Solenoid Blocks for the 5R55N/W/S, with an additional option for solenoid repair kits with Maxx Fluxx SOLPRO rebuild kits.
  • Seal Aftermarket Products now has the complete overhaul kit for the U250E series transmission with year coverage 2005-2009. Click here for more information
  • Superior now offers a valve body upgrade kit for all 6 solenoid KM's! Part #: STL-175-6. Click here for more information
  • Raybestos® Powertrain introduces a TREMEC TR-9080 DCT Transmission GPZ Friction Clutch Pack Module designed to enhanced performance beyond OE capabilities! The RGPZ-277 friction clutch module features 5 K1 and 6 K2 GPZ TR-9080 transmission friction clutch plates. GPZ friction material is a performance proven friction material in the TR-9080 and was featured in prototype testing in the first 2020 C8 Corvette to achieve 1000 horsepower and a 9 second 1/4 mile track time.
    Learn more
  • Sonnax introduces a new, drop-in Zip Valve™ 1-3-5-6-7 accumulator piston kit that eliminates leaks in GM 8L45/90 transmissions to restore normal shift operation and feel while protecting against premature wear.
  • Raybestos unveils superior friction plate for Honda transmissions! Click here for more information!
  • Seal Aftermarket Products now has the complete overhaul kit for the AW TF 80SC series transmission with year coverage 2006-up. Click here for more information
  • Superior has introduced an extra thick valve body separator plate for 4R70W & 4R75W! Click here for more details!
  • Sonnax announces two new extension housing bushings that restore normal operation and provide greater wear resistance in GM 6L80 and 6L90 RWD applications:
    Fits 6L80
    Fits 6L90
  • Seal Aftermarket Products now has the complete overhaul kit for the ZF5HP19/FL/FLA series transmission with year coverage 1996-up. Click here for more information
  • Superior Transmission Parts is proud to announce their new A618 / 48RE LOW & REVERSE SUPER SERVO! Click here for more info!
  • Sonnax introduces a new oversized main pressure regulator valve kit to overcome low pressure, delayed engagement, push belt slippage, and solenoid performance codes in Jatco/Nissan JF016E (RE0F10D) and JF017E (RE0F10E) transmissions.
  • Seal Aftermarket Products now has the complete overhaul kit for the ZF6HP26 series transmission with year coverage 2001-up. Click here for more information
  • G-TEC proudly announces our optional filter system for all TurboTank and G-TEC heated cooler line flushers in a ready to install kit form. Click here for more information
  • Sonnax offers a handy vacuum test plate kit for fast, easy, accurate testing on Ford 4R70E/W, 4R75E/W and AODE valve bodies.
  • Seal Aftermarket Products now has the complete overhaul kit for the HONDA/ ACURA (Vue 2004-Up) 4 SHAFT, 5 SPEED series transmission with year coverage 2003-Up. Click here for more information
  • Sonnax offers a precision-engineered heavy duty input shaft for unrivaled performance in high-horsepower Ford 4R70E/W, 4R75E/W and AODE transmissions.
  • Seal Aftermarket Products now has the complete overhaul kit for the VW09M series transmission with year coverage 2006-up. Click here for more information
  • Sonnax offers a direct-OE-replacement, 8-piece bearing kit for Toyota/Lexus U760E/F transmissions. A rear cover bearing is also available separately.
  • Seal Aftermarket Products now has the complete overhaul kit for the Chrysler 62TE series transmission with year coverage 2007-up. Click here for more information
  • Sonnax offers a heavy duty stator shaft kit to address a common failure point in Dodge trucks with AS68RC transmissions - a stator shaft that has spun in the pump cover. Capable of withstanding 15% more torque than OE shafts, this shaft allows you to save the pump and complete repairs for a fraction of the cost of a new pump.

TRNW Store

G-Tec Heated Cooler Line Flusher

G-Tec Heated Cooler Line Flusher

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Sonnax Vacuum Test Stand

Sonnax Vacuum Test Stand

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VB-Fix Reaming Fixture

VB-Fix Reaming Fixture

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47RE Noise Filter

47RE Noise Filter

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GM Power Relay

GM Power Relay

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AW Solenoid Service Tool

AW Solenoid Service Tool

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Aisin Solenoid Bushings

Aisin Solenoid Bushings 100 Pack

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