🔥 TWISTED PRO™ FORD DIESEL C6 TRANSMISSION 650HP

Fits 1983–1991 Ford F-250 / F-350 6.9L & 7.3L IDI Diesel

(C6 3-Speed Automatic Transmission)

The Twisted Pro™ Ford Diesel C6 is built for higher torque diesel applications, heavier towing, larger tires, performance diesel trucks, and aggressive street/work use.

This is a significantly upgraded version of our Twisted Street™ series with additional clutch capacity, upgraded hard parts, and increased holding power for customers pushing their diesel trucks harder.

Every transmission is completely disassembled, cleaned, inspected, and built in-house the Twisted Torque™ way.

🔥 DESIGNED FOR HEAVY DUTY DIESEL PERFORMANCE

Ideal for:

• Heavy towing

• Lifted trucks

• Larger tire setups

• Performance diesel builds

• Farm and work trucks

• Street and strip diesel applications

🔧 TWISTED PRO™ DIESEL OVERHAUL PACKAGE

✔️ Twisted Torque™ HD Clutches and Steels with Increased Clutch Capacity

✔️ Heavy-Duty Kevlar Intermediate Band

✔️ Billet Servo Upgrade

✔️ Upgraded Sprag Assembly

✔️ Heavy-Duty Bushing and Bearing Package

✔️ Torrington Bearing Upgrades

✔️ Premium seals and gaskets

✔️ Updated sealing rings

✔️ New filter

⚙️ TWISTED TORQUE™ VALVE BODY

Modified & Updated the Twisted Torque™ Way

✔️ Increased line pressure calibration

✔️ Firmer diesel shift strategy

✔️ Reduced clutch overlap and slip

✔️ Calibrated specifically for diesel torque delivery

🔧 TWISTED TORQUE™ PUMP

Modified & Updated the Twisted Torque™ Way

✔️ Updated pressure regulator system

✔️ Improved oil flow and clutch apply pressure

✔️ Pump fully inspected and recalibrated

🔩 DIESEL TORQUE CONVERTER INCLUDED

• Low-stall diesel towing converter included

• Calibrated for diesel torque delivery

Recommended Stall:

1600–1800 RPM

Optional Billet Converter Upgrade Available

🔥 POWER CAPACITY

Rated for applications up to 650 horsepower

Perfect for:

• Tuned diesel trucks

• Heavy towing applications

• Larger tires and lifted trucks

• Aggressive work truck use

• Street performance diesel builds

🔁 CORE CHARGE

$500 Refundable Core Charge

Core must be rebuildable. Refund issued once returned.

🚚 SHIPPING

Freight shipping available nationwide and worldwide

• Commercial dock delivery recommended

• Residential delivery available

• Freight terminal pickup available

📞 BUILT TO ORDER

Each transmission is built for your specific application.

We confirm vehicle setup, towing usage, tire size, gearing, horsepower goals, and overall build before final assembly to ensure proper fitment and performance.

Questions? Need help choosing the right build?

833-858-9612