
Twisted Pro™ 68RFE Transmission | 6.7L Cummins 550HP
Fits 2007.5–2018 Ram 2500 / Ram 3500
Rated Up To 550 HP / 1,050 lb-ft
Heavy-Duty Towing. Tuned Diesel Street Trucks. Built for Torque.
Once tuning increases torque output, the factory 68RFE commonly experiences:
• Overdrive clutch distortion and burn-up
• 2C clutch heat saturation
• Accumulator piston failure
• Channel plate cross-leaks
• Input drum instability
• Low/Reverse sprag fatigue
• Valve body pressure instability
👉 These are the exact failure points addressed in the Twisted Pro™ build
✔ Complete Master Overhaul Kit
✔ Twisted Torque™ HD Clutches and Steels
✔ OEM Bushings
✔ Reinforced input drum configuration
✔ Increased Overdrive Clutch Capacity
✔ Custom Overdrive Stack Setup
✔ 4C Power Pack Upgrade
✔ High-Energy 4C Clutch Configuration
✔ Billet 4C Snap Ring Retainer
✔ 2C Power-Packed Clutch System
✔ Upgraded 2C Apply Components
✔ Valve Body Modified & Updated the Twisted Torque™ Way
✔ Billet Channel Plate
✔ Reinforced Separator Plate
✔ Billet Accumulator Pistons with Reinforced Cover
✔ New OE Solenoid Pack
✔ Pump Modified & Updated the Twisted Torque™ Way
Hydraulic integrity is critical at this power level
We correct pressure loss, eliminate cross-leaks, and increase clutch apply force to support higher torque loads
✔ Heavy-Duty Low/Reverse Sprag Upgrade
Prevents common sprag failure under towing and torque shock
✔ Heavy-Duty Multi-Disc Torque Converter Included
Designed for:
• Increased lock-up holding capacity
• Improved clutch surface area
• Stronger internal construction
• Towing stability under load
• Factory-like drivability
(Not a race converter — built for high torque street and work use)
• Up to 550 HP
• Up to 1,050 lb-ft
For higher horsepower builds, see:
Twisted Punisher™ or Twisted Executioner™ 68RFE transmissions
This transmission is designed to handle increased power levels, however:
• Proper ECM tuning is required for optimal performance and longevity
• Transmission operation (line pressure, shift timing, and converter lock-up) is directly affected by tuning strategy
• Improper or aggressive tuning can result in excessive heat, clutch wear, or premature failure
👉 We strongly recommend working with a qualified diesel tuner familiar with 68RFE calibration
We don’t rebuild 68RFEs — we correct them
Every unit is:
• Fully disassembled, cleaned, and inspected
• Measured and built to precise tolerances
• Upgraded where the factory fails
• Calibrated for real diesel torque and towing loads
👉 Built for trucks that work, tow, and make power — not just pass a bench test
⚠ Core return required
Core must be complete and rebuildable
Core charge applies if no core is returned
Questions about tuning, injectors, turbo upgrades, or fitment?
📞 833-858-9612
Our diesel specialists are here to help