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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 two new high capacity 4-5-6 clutch apply piston kits to eliminate clutch failure in GM 6L80/90 transmissions. Featuring an innovative configuration that eliminates the waved plate - plus a solid backing plate design that outperforms OE and aftermarket plates, these kits are game changers:
    Use this kit with OE 36-tooth clutches and OE steels
    Use this kit with aftermarket 45-tooth Powerglide clutches and special steels
  • 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 high capacity 3-5-R apply ring for GM 6L80 transmissions that increases clutch capacity by 25%, and adds more durability to handle modified engines with increased power output.
  • 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 unveils a new performance roller bearing slip yoke for TH400, 4L80-E and Powerglide (with 32-spline) units. Proven indestructible in track and street runs, this yoke drives huge horsepower from transmission to driveshaft with unmatched strength and durability.
  • 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 announces a new oversized AFL valve kit to overcome solenoid performance codes, wrong gear starts and clutch failure in GM 6T70/75/80 transmissions.
  • 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 introduces two new 10-piece thrust bearing kits to easily replace worn or damaged bearings in Chrysler 62TE transmissions:
    Fits '07-'08 units
    Fits '09-later units
  • 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.
  • 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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