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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

  • TRNW launched it's new iOS App! Now available in the Apple App Store!
  • 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 announces a new heavy duty main shaft for GM 400, 4L80E, and 4L85E applications (up to 1,000HP). Made from high-strength 300M with proprietary heat treatment and post heat treat processing, this shaft delivers exceptional performance, durability, and value.
  • 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 introduces 48RE TorqKits! With an enhanced shift feel, increased torque capacity and smooth engagements, drop-in Torqkits are designed to help tear up the drag strip.
    Learn more
  • Sonnax unveils a new heavy duty overdrive clutch hub and shaft to eliminate catastrophic gear train failure in Chrysler 66RFE and 68RFE transmissions. This highly reliable upgrade is an easy, direct replacement designed to protect any vehicle at any power level.
  • 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 jump starts "Race With Raybestos" customer reward program! Click here for more information!
  • Sonnax now offers two new pressure regulator sleeves to overcome line pressure instability in Ford 6R80 '15-later transmissions.
    Direct replacement (no maching required)
    Oversized kit (use if the remainder of the pressure regulator bore is worn)
  • 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 releases a new premium remanufactured valve body designed to address TCC issues, solenoid performance codes, wrong gear starts, slips and flares, harsh shifts, delayed engagements, burnt clutches, low converter and lube flow and erratic line pressure in GM Gen. 2 6T7075/80 transmissions. Sonnax quality + verified OE performance.
  • 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!
  • 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 introduces a new premium remanufactured valve body designed to address harsh shifts, delayed engagements, solenoid codes, gear ratio codes, slips and flares, burnt clutches, low converter and lube flow, erratic line pressure, and failed solenoids in Ford 6R140 '11-'17 units with a cooler bypass valve. Sonnax quality + verified OE performance.
  • 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 now offers a new oversized Forward and Reverse abuse valve kit to overcome slippage and burn-up issues in GM 4L60/65/70-E 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 releases a new oversized pressure regulator valve kit to tackle multiple line pressure and converter-related problems in GM Gen. 2 6T70/75/80 transmissions.
  • 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 introduces a new easy-to-install high capacity K2 clutch piston kit that improves clutch capacity by 20% with no drum or piston machining required.

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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