Complete Transmissions

2010–2018 Dodge Ram 2500 & 3500 6.7L Cummins Heavy-Duty Complete Transmissions & Crate Assemblies

Eliminate repeated transmission failures, handle aggressive engine tuning, and restore absolute towing confidence while hauling heavy fifth-wheel trailers with premium 2010–2018 6.7L Cummins 4th Gen complete transmissions from Full Force Diesel. Factory 68RFE automatic transmissions in 4th Generation Ram trucks are notoriously vulnerable to clutch slippage, warped overdrive drums, and catastrophic shaft shearing under the massive low-end torque produced by the 6.7L common-rail diesel. Rather than piecing together individual internal repairs on an aging case, upgrading to a fully re-engineered, turnkey complete transmission provides a complete solution built from the ground up to handle extreme torque and commercial workloads.

Turnkey Heavy-Duty Upgrades: Billet Internals and Multi-Disc Converters

Transitioning to a complete built crate transmission replaces every weak link inside your drivetrain with heavy-duty components:

• Heavy-Duty Billet Shaft and Drum Assemblies: Built complete transmissions feature high-strength billet steel input shafts, reinforced intermediate shafts, and billet overdrive drums. This eliminates the structural flexing and shaft snapping common in stock units during heavy launches or aggressive shift points.

• Upgraded Clutch Packs and High-Pressure Valve Bodies: Rebuilt with extra-capacity high-energy friction plates, billet accumulator pistons, and recalibrated heavy-duty valve bodies, these units maintain elevated line pressures to lock clutches solidly in place, preventing slip and thermal glazing under heavy loads.

Dyno-Tested Reliability: Crate Replacement and Performance Stages

Our selection of common-rail drivetrain assemblies offers precision-engineered solutions tailored to your truck's specific duty cycle:

• Rigorous Dyno-Tested Quality Assurance: Every complete transmission assembly undergoes extensive hydraulic pressure and spin-dyno testing before leaving the shop. This ensures perfect valve body calibration, leak-free operation, and precise shift timing right out of the box.

• Direct Drop-In Crate Convenience: Shipped complete with a heavy-duty triple-disc torque converter and deep aluminum pan, these crate units drop straight into your factory crossmember and driveshaft configuration without requiring custom fabrication or vehicle alterations.

At Full Force Diesel, we carry the rugged, street-tested mechanical hardware and machine-shop-certified components your 4th Generation inline-six needs to remain completely dependable. Explore our complete selection of 2010–2018 6.7L Cummins 4th Gen complete transmissions, heavy-duty built crate units, and high-performance stage packages above to secure your truck's drivetrain power today.