BD Diesel Stage 5 Duramax Allison Transmission/Converter Package - 06-07 Chevy LBZ 4WD

If you're looking to handle serious power and torque from your Duramax diesel, this BD Diesel Stage 5 Allison Transmission and Torque Converter package for your 2006-2007 Chevy Silverado or GMC Sierra LBZ 4WD is a solid choice. This isn't just a transmission; it's a complete, matched system that's been dyno tested together to ensure it can handle the demands of towing, street driving, or track use. It's built to stand up to the power your diesel can put out, offering a dependable upgrade for your drivetrain.

BD Diesel has reinforced key areas to make this transmission robust. It features a new double cage stator sprag, which is stronger than the stock design and helps prevent common failures. The input shaft is a billet unit, designed to handle rapid throttle changes and high horsepower. You'll also find an increased clutch count across several clutch packs, including C2, C3, C1, C4, and C5, giving you more holding power. The package includes BD's own aluminum heavy-duty deep transmission pan, which adds an extra 3.5 quarts of fluid capacity, helping to keep temperatures down and increasing overall strength. The torque converter is also a matched component, featuring a triple disc design with enhanced stall for street and towing applications, and it's built with high-energy clutch material and a stamped forged one-piece cover for improved durability.

This package is designed for improved efficiency and durability. The trapezoid teeth on the clutch packs increase contact area, reducing wear and chatter. Furnace brazed turbine fins in the converter improve fluid coupling efficiency, and new A & B trim valves ensure full line pressure reaches the clutches. You'll also notice a reduction in overall weight compared to some competitors. This transmission is dyno tested before it leaves BD Diesel, so you know it's ready to perform right out of the box.