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  • Technical Service Bulletins & Tech Tips for most every transmission model
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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

  • Find valve body problems 2X faster with Sonnax vacuum test plate kits! Each plate seals over the entire valve body casting, leaving ports open at key areas for quick, easy testing. Choose from three new kits:
    4L60/65/70-E
    5R55S/W
    6R60/80 & ZF6HP19/26/32
  • 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
  • Check out the complete lineup of Sonnax driveline upgrades for increased strength, performance and durability in this brand-new catalog! Read online or request a hardcopy now!
  • 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 introduces a new clutch control valve spring to restore normal shift operation due to fatigued or broken springs in Aisin Seiki AS68RC 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 releases a new Chrysler 45/545/68RFE oversized pressure regulator valve kit to restore proper line pressure control in all ranges.
  • 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 introduces a new oversized clutch cooling control valve kit to tackle harsh engagements, downshifts and overheating in VW/Audi 0B5 and DL501 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 introduces two new boost valve kits to conquer 3-4 clutch failure, low line rise and poor shift quality in GM 4L60/65/70-E transmissions:
    Replaces standard OE ratio assemblies
    Replaces large OE ratio assemblies
  • 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

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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