🔥 TWISTED TORQUE STREET™ 10R140 DIESEL

2020-UP FORD 10R140 • 6.7L POWER STROKE DIESEL

UP TO 600 HP / 1,350 LB-FT

STOCK • MILD TUNE • HEAVY TOWING • WORK TRUCK

The Twisted Torque Street™ 10R140 Diesel is our performance rebuild for stock and mildly modified 6.7L Power Stroke applications.

The diesel 10R140 is built separately from our gas 10R140. Ford uses a higher-capacity clutch configuration in the 6.7L diesel transmission, including additional C and D clutch capacity.

Our Street™ build keeps the correct diesel clutch configuration, upgrades the friction material and addresses the C-D-F drum, E-clutch feed and hydraulic wear areas we look for during a 10R140 rebuild.

Every transmission is built in-house and matched to the vehicle, engine and intended use.

🔥 TWISTED STREET™ RATING

UP TO 600 HP / 1,350 LB-FT

TRANSMISSION ONLY — TORQUE CONVERTER SOLD SEPARATELY

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🔧 DIESEL 10R140 APPLICATIONS

6.7L POWER STROKE DIESEL

✔ 2020-Up Ford F-250 Super Duty

✔ 2020-Up Ford F-350 Super Duty

✔ 2020-Up Ford F-450 Super Duty

✔ 2020-Up Ford F-550 Super Duty

✔ Ford F-600 — Where Equipped

✔ Pickup Applications — Where Equipped

✔ Chassis Cab Applications — Where Equipped

✔ 2WD

✔ 4WD

ENGINE APPLICATIONS

✔ 6.7L Power Stroke V8 Turbo Diesel

✔ 6.7L High Output Power Stroke V8 Turbo Diesel — Where Equipped

Transmission: Ford Heavy-Duty TorqShift 10-Speed 10R140 Automatic

VIN and transmission application verification required before build.

Ford confirms the heavy-duty 10R140 behind the 6.7L diesel, and Ford inventory data also confirms 6.7L/10R140 F-600 applications. TransTec lists its 10R140 overhaul kits for F-250 through F-550 from 2020-up and F-600 from 2021-up.

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🔧 RAYBESTOS GPZ DIESEL CLUTCH SYSTEM

✔ Raybestos RGPZ-276 GPZ Diesel Friction Module

✔ Raybestos STMFORD21 Diesel Steel Module

GPZ FRICTION COUNT

✔ A Brake — 4 GPZ Frictions

✔ B Brake — 5 GPZ Frictions

✔ C Clutch — 6 GPZ Frictions

✔ D Clutch — 6 GPZ Frictions

✔ E Clutch — 4 GPZ Frictions

✔ F Clutch — 4 GPZ Frictions

STEEL COUNT

✔ A Brake — 3 Steels

✔ B Brake — 4 Steels

✔ C Clutch — 6 Steels

✔ D Clutch — 6 Steels

✔ E Clutch — 5 Steels

✔ F Clutch — 4 Steels

✔ Clutch Clearances Set During Assembly

The 6.7L diesel uses the higher-capacity 6-friction C and D clutch configuration, compared with the 5-friction C and D configuration used in the Raybestos gas 10R140 package.

Street™ replaces the OE friction material with Raybestos GPZ performance frictions while retaining the correct diesel clutch configuration.

These counts are directly confirmed by Raybestos.

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🔧 C-D-F DRUM

✔ C-D-F Drum Inspected

✔ C-D-F Feed Bushings Checked For Movement

✔ C-D-F Feed Passages Checked

✔ Drum Checked For Hydraulic Leakage & Wear

✔ Updated C-D-F Drum Installed As Required

The C-D-F drum is checked closely during teardown for feed bushing movement, wear and hydraulic leakage.

Early-design, worn or damaged drums are replaced with the updated drum as required.

The updated Ford drum used in current rebuild programs incorporates a change intended to prevent the CDF feed bushing from walking in the bore.

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🔧 E-CLUTCH FEED SYSTEM

✔ E-Clutch Feed Hub Inspected

✔ E-Clutch Feed Shim Inspected

✔ E-Clutch Feed Circuit Checked

✔ Feed Surfaces Checked For Wear & Leakage

✔ Updated Feed Hub / Shim Installed As Required

The E-clutch feed system is checked during teardown for wear, leakage and damaged or outdated feed hardware.

Updated E-clutch feed hardware is installed where required by the condition and generation of the transmission.

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🔧 VALVE BODY & HYDRAULICS

✔ Valve Body Completely Disassembled & Cleaned

✔ Valve Body Vacuum Checked

✔ Main Pressure Regulator Circuit Checked

✔ TCC Priority Circuit Checked

✔ TCC Signal Damper Circuit Checked

✔ Latch Valve Circuits Checked

✔ Latch Valve Stems Inspected

✔ Solenoid Regulator / Control Circuits Checked

✔ Sonnax Solenoid Stabilization Updates As Required

✔ Sonnax Latch Valve Repairs As Required

✔ Sonnax Hydraulic Repairs As Required

✔ Separator Plate Inspected

✔ Solenoids Tested

✔ Solenoid Strategy Recorded

✔ Hydraulic Calibration Set For Application

2020–2022 / EARLY DESIGN

Early-design valve bodies are inspected for wear in the known pressure regulator, TCC, latch valve, solenoid control and related hydraulic circuits.

2023-UP / PC3P DESIGN

2023-up PC3P-design valve bodies are identified and serviced separately using the correct generation-specific repair procedures and parts.

Early-design Sonnax valve-body repairs are not automatically installed in later PC3P valve bodies.

This distinction matters. Sonnax specifically states that its 105740-12K and 105740-20K main-pressure-regulator repairs and several other earlier repairs do not fit 2023-later PC3P 10R140 valve bodies. Gears also documents Ford's March 2023 main-control redesign and PC3P casting.

Sonnax currently catalogs 10R140 repairs for the main pressure regulator, TCC priority circuit, TCC signal damper, latch valves and solenoid stabilization system.

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🔧 PUMP & PRESSURE SYSTEM

✔ Pump Completely Disassembled

✔ Pump Body Inspected

✔ Pump Cover Inspected

✔ Pump Gears Inspected

✔ Pump Clearances Checked

✔ Pump Bushing Replaced

✔ Pressure Regulation System Checked

✔ Pump Replaced If Out Of Specification

The pump is completely inspected during the rebuild. Worn pump surfaces, excessive clearances or pressure-related damage are corrected before assembly.

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🔧 COMPLETE OVERHAUL

✔ Complete Teardown & Cleaning

✔ Case Cleaned & Inspected

✔ New Bushing Kit

✔ New Seals & Gaskets

✔ New Sealing Rings

✔ Bonded Pistons Replaced As Required

✔ Bearings Inspected / Replaced As Required

✔ Torrington Bearings Inspected / Replaced As Required

✔ New Transmission Filter

Current 10R140 overhaul support includes complete seal/gasket packages, piston-equipped kits, filters and application-specific overhaul parts. TransTec currently offers 10R140 kits both with and without pistons.

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🔧 DIESEL HARD PART INSPECTION

✔ Input Shaft

✔ Output Shaft

✔ C-D-F Drum

✔ E-Clutch Drum & Feed Hub

✔ Clutch Hubs

✔ Planetary Gearsets

✔ Planet Carriers

✔ Sun Gears

✔ Ring Gears

✔ One-Way Clutch

✔ Supports

✔ Bearing Surfaces

Hard parts are checked for spline wear, bushing wear, bearing damage, thrust damage, heat damage and gear damage.

WORN OR DAMAGED HARD PARTS ARE REPLACED.

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🔧 INTERNAL ELECTRONICS

✔ Solenoids Tested

✔ Solenoid Strategy Recorded

✔ Internal Harness Inspected & Tested

✔ TSS Speed Sensor Checked

✔ ISSA Speed Sensor Checked

✔ ISSB Speed Sensor Checked

✔ OSS Speed Sensor Checked

✔ Transmission Temperature Circuit Checked

Failed internal electronics are replaced during the build.

SOLENOID STRATEGY INFORMATION IS RECORDED WITH THE TRANSMISSION FOR INSTALLATION AND PROGRAMMING.

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⚠️ TORQUE CONVERTER NOT INCLUDED

A new or professionally remanufactured 10R140 diesel torque converter is required.

THE ORIGINAL USED TORQUE CONVERTER CANNOT BE REUSED.

If the converter is purchased elsewhere, proof of purchase for the replacement converter is required for warranty coverage.

Stock replacement and performance diesel torque converters are available separately.

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🔥 BUILT FOR

✔ Stock 6.7L Power Stroke

✔ Stock 6.7L High Output Power Stroke

✔ Tow Tunes

✔ Mild Performance Tunes

✔ Mild Fueling Changes

✔ Heavy Towing

✔ RV / Trailer Towing

✔ Work Trucks

✔ Commercial Trucks

✔ Daily Driven Diesels

Modified applications require proper engine and transmission tuning and must remain within the rated power and torque level.

MAX STREET™ RATING

600 HP / 1,350 LB-FT

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🔥 TWISTED TORQUE STREET™ 10R140 DIESEL

UP TO 600 HP • 1,350 LB-FT

6.7L POWER STROKE DIESEL

Raybestos RGPZ-276 GPZ Diesel Frictions

Raybestos STMFORD21 Diesel Steels

6-Friction C & D Clutch Capacity

C-D-F Drum Inspection & Updates

E-Clutch Feed Inspection & Updates

10R140 Hydraulic Corrections

Generation-Specific Valve Body Service

Diesel-Spec Hard Part Inspection

TORQUE CONVERTER SOLD SEPARATELY

BUILT IN-HOUSE BY TWISTED TORQUE