The BD Diesel TorqueMaster 01-04 Chevy LB7 Stage 5 Allison Transmission & Converter Package is engineered for heavy-duty performance and reliability, specifically designed for 2004 Chevrolet Silverado and GMC Sierra 2500/3500 HD trucks with the LB7 engine. This matched set has been dyno tested together to ensure optimal power transfer and durability under demanding towing and hauling conditions. The package includes a high-performance transmission and a reinforced torque converter, both built with precision components to withstand the torque and horsepower of your diesel engine.
Each transmission features a billet input shaft designed to handle rapid throttle inputs and high horsepower loads, while the cast stator maximizes torque during heavy-duty operation. The enhanced clutch count, with 8 clutches in the first pack and 7 in others, provides increased friction surface area for improved engagement and durability. The new A and B trim valves deliver full line pressure to ensure consistent shifting, and the furnace brazed turbine fins improve fluid coupling efficiency for smoother operation.
The aluminum HD deep transmission pan adds 3.5 quarts of oil capacity, helping to maintain proper lubrication and thermal management during extended towing or high-performance driving. The transmission’s taller, rebuildable cover allows for easier maintenance and increased longevity. Additional enhancements include furnace brazed fins, high-energy clutch materials, and revised oil circuits that promote cooler operation and prevent clutch heat warpage. The torque converter features a triple disc design with an increased stall to improve power transfer and responsiveness, especially in towing applications.
Designed for ease of installation and long-term reliability, the BD TorqueMaster package is suitable for severe fleet duty, street performance, or track use. Each component is built with tight tolerances and high-quality materials to withstand the rigors of demanding diesel applications, ensuring your drivetrain remains reliable under high torque conditions and extended use. This package is ideal for owners seeking to upgrade their transmission system for increased durability, power capacity, and smooth engagement in challenging driving environments.
Features:
- Heavy-duty torque capacity designed for fleet and diesel applications
- Premium friction materials for smooth, consistent engagement
- Enhanced thermal capacity to prevent clutch slippage during severe towing
- Long-term drivetrain reliability with reinforced components and upgraded design features
Fitment:
Chevrolet Silverado 2500 HD Base 2001 to 2004
Chevrolet Silverado 2500 HD LS 2001 to 2004
Chevrolet Silverado 2500 HD LT 2001 to 2004
Chevrolet Silverado 2500 HD WT 2004
Chevrolet Silverado 3500 Base 2001 to 2004
Chevrolet Silverado 3500 LS 2001 to 2004
Chevrolet Silverado 3500 LT 2001 to 2004
Chevrolet Silverado 3500 WT 2004
GMC Sierra 2500 HD Base 2002 to 2004
GMC Sierra 2500 HD SL 2001 to 2002
GMC Sierra 2500 HD SLE 2001 to 2004
GMC Sierra 2500 HD SLT 2001 to 2004
GMC Sierra 2500 HD WT 2003 to 2004
GMC Sierra 3500 Base 2002 to 2004
GMC Sierra 3500 SL 2001 to 2002
GMC Sierra 3500 SLE 2001 to 2004
GMC Sierra 3500 SLT 2001 to 2004





















