BD Diesel 05-07 Ford 5R110 2WD Stage 4 Transmission & Converter Package

BD Diesel has been making drivetrain components for decades, and this Stage 4 transmission and converter package for your 2005-2007 Ford E-350 Super Duty is one of their staples. If you're looking to significantly increase the durability and performance of your truck's drivetrain, especially under heavy loads or towing, this package is built to handle the demands of your diesel engine.

This package includes a completely reworked transmission featuring a BD aluminum HD deep pan that adds an extra 6 quarts of oil capacity, helping to keep temperatures down during strenuous use. You'll find upgraded clutch counts across several gears, including a 67% increase in both Intermediate and Overdrive clutches, and a 20% increase in Direct clutches, all designed to handle more power. Plastic pressure plugs in the valve body are replaced with aluminum for better reliability, and a heavy-duty snap ring and blow-off valve are included to prevent runaway pressure from damaging the case. The reworked front pump ensures consistent fluid delivery, and the entire transmission assembly is dyno tested to ensure it performs as expected right out of the box.

The included torque converter is engineered for enhanced stall, making it ideal for street and towing applications. It features torque-multiplying cast aluminum stators and offers a lower RPM response than stock converters for more efficient operation, leading to less heat and better fuel economy. The converter is built with a stamp-forged steel front cover and furnace-brazed fins for strength, and it boasts up to triple the amount of lock-up clutch material found in stock units. This matched set is dyno tested together, ensuring optimal performance and reliability for your diesel truck.