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  • 2-3 Flare
  • 3rd Slip
  • 4-5 Flare
  • 5th Slip
  • Delayed Reverse
  • Direct clutch burned
  • Ratio codes
  • Bind-up
  • Reverse slip


Persistent oscillation of the direct clutch regulator valve causes bore wear that prevents proper hydraulic control of direct clutches.


Recover hydraulic control and renew shift performance by reconditioning the bore and installing Sonnax oversized direct clutch regulator valve kit.


Oversized Direct Clutch Regulator Valve Kit
Part No. 126740-11K

You need this if... View Instructions

Direct clutches in Ford 6R140 transmissions are applied in third, fifth and Reverse gears in conjunction with other clutch packs. As the direct clutch regulator valve oscillates and strokes over time, bore deterioration results, allowing critical pressure to exhaust and preventing proper hydraulic control of the direct clutch. This can cause flares, slipping, erratic clutch apply timing, ratio codes, bind-ups, and burnt direct clutches.

Reconditioning the bore and installing Sonnax oversized direct clutch regulator valve kit 126740-11K revives normal shift operation by restoring the hydraulic integrity of the direct clutch circuit.

  • Annular grooves help center valve in bore to reduce future side-load wear
  • Hardcoat anodized aluminum valve combats premature wear
  • Valve
  • Spring

Sonnax valve body layouts provide a detailed overview of individual units making it quick and easy to determine what’s available for the specific valve body you’re working on. See all Sonnax valve body layouts.

Ford 6R140 Valve Body Layout

Ford 6r140 vbl thumb

November 24, 2015

Ford 6R140 Vacuum Test Guide

Topics: Vacuum Test Guides Vacuum Testing Transmission Ford 6R140 Transmission

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September 30, 2005

Anatomy of a Transmission: Oil Flow in the Pump-PR-Converter-Cooler Lube Circuits

Gregg Nader

Topics: Diagnostics And Theory Transmission

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  • 126740 11k combo
  • 126740 11k

You need this if...

Vacuum testing at the port(s) indicated fails to hold the recommended minimum in-Hg, or if wear is visually detected.

  • 126740 11k test