The BD Diesel 1064744BM Duramax Allison Transmission and Torque Converter Package is designed for heavy-duty applications, offering enhanced durability and performance for 2007-2010 Chevy Silverado 2500 HD models with the LMM engine. This matched set has been dyno tested together to ensure optimal performance and reliability under demanding towing, street, or track conditions. The package includes a high-capacity aluminum deep transmission pan that increases oil capacity by 3.5 quarts, helping to manage heat and maintain smooth operation during severe duty cycles. BD’s own heavy-duty pan construction adds case strength and fluid capacity, contributing to the overall longevity of your drivetrain.
The transmission features numerous upgrades such as a double cage stator sprag for increased strength and reduced failure rates, riveted pistons for precise alignment and vibration elimination, and a self-centering trapezoid teeth design that improves contact and reduces wear. The billet input shaft is engineered to withstand the ‘snap’ from rapid throttle inputs and high horsepower outputs, ensuring long-term durability. Advanced clutch configurations with increased clutch count—up to 8 clutches in the C1 clutch pack—provide higher torque capacity and improved holding power. Additionally, furnace brazed turbine fins enhance fluid coupling efficiency, while new valves deliver full line pressure to the clutches for crisp shifting.
The torque converter features an enhanced stall speed for better towing and street performance, with a triple-disc design to handle increased power and torque loads. The entire assembly is built with tighter tolerances and high-energy friction materials to maximize efficiency and lifespan. Each transmission is dyno tested before shipping, guaranteeing consistent quality and performance. Whether you’re towing heavy loads or seeking improved street performance, this BD Diesel package provides a dependable, high-performance solution for your Duramax-powered Chevrolet Silverado.
Features:
- Heavy-duty torque capacity with upgraded clutch packs and increased clutch count for enhanced durability under high torque loads
- Premium friction materials and furnace brazed turbine fins for smooth engagement and improved fluid coupling efficiency
- Enhanced thermal capacity with a deep aluminum transmission pan to prevent clutch slippage during severe towing
- Designed for long-term reliability with tighter tolerances, high-energy clutches, and dyno-tested performance assurance
Fitment:
Chevrolet Silverado 2500 HD LT 2007 to 2010
Chevrolet Silverado 2500 HD LTZ 2007 to 2010
Chevrolet Silverado 2500 HD WT 2007 to 2010
Chevrolet Silverado 3500 Classic LS 2007
Chevrolet Silverado 3500 Classic LT 2007
Chevrolet Silverado 3500 Classic WT 2007
Chevrolet Silverado 3500 HD LT 2007 to 2010
Chevrolet Silverado 3500 HD LTZ 2007 to 2010
Chevrolet Silverado 3500 HD WT 2007 to 2010
GMC Sierra 2500 HD SLE 2007 to 2010
GMC Sierra 2500 HD SLT 2007 to 2010
GMC Sierra 2500 HD WT 2007 to 2010
GMC Sierra 3500 HD SLE 2007 to 2010
GMC Sierra 3500 HD SLT 2007 to 2010
GMC Sierra 3500 HD WT 2007 to 2010





















