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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!
  • Sonnax introduces a new 4-5-6 accumulator piston kit to eliminate leaks, recover hydraulic control, and renew shift feel and performance in GM Gen. 2 6T70/75/80 transmissions.
  • 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 releases a new exhaust backfill valve kit to conquer delayed, long or flare shifts in '00-'15 trucks equipped with Allison 1000/2000/2400 transmissions. Nearly doubling the amount of critical valve spool-to-bore engagement - both at the inboard and outboard areas of the bore, this kit delivers better sealing of the exhaust backfill circuit.
  • 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 announces a new vacuum test plate kit for Toyota U660E/F and U760E/F units. This handy kit seals the entire valve body at once with open ports at key test areas for fast, easy, reliable test results.
  • Raybestos unveils superior friction plate for Honda transmissions! Click here for more information!
  • Adapt-A-Case has several new products to help make our life easier! 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!
  • Adapt-A-Case now has 6L80 1-5 drum handlers. Save Your Fingers! Click here for more info.
  • Sonnax releases a new, PTFE-coated batwing washer to replace worn or damaged OE washers in GM 4L60/65/70-E transmissions. (Fits 5-pinion front planetary.)
  • 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!
  • Adapt-A-Case is proud to introduce their jack adapter for 6T70 and 6F50 transmissions! Click here for more information!
  • 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 releases two new reverse modulator valves to fix multiple Reverse issues in Ford 4R44E, 4R55E, 5R44E and 5R55E applications:
    Inner Reverse Modulator Valve
    Outer Reverse Modulator Valve
  • 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 announces two new remanufactured valve bodies featuring top-quality Sonnax components to optimize valve body function and prevent future wear in early- and late-style Ford 6F50/55 units:
    Fits '07-'09 units with 1.35 ratio 3-5-R
    Fits '09-later units with 1.83 ratio 3-5-R
  • 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 presents a new extreme duty forward clutch hub kit to eliminate spline wear in extreme power and offroad GM 400, 425 and 4L80/85-E applications.
  • Adapt-A-Case offers a universal spring compressor! Click here for more information on the Every Buddy!
  • 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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