BD Diesel Transmission and Converter Pack – Part # 1064724SS

Enhance the durability and performance of your heavy-duty Chevy Silverado with the BD Diesel Transmission and Converter Pack, designed specifically for 2004.5 to 2006 LLY models. This comprehensive package includes a high-capacity aluminum deep transmission pan that increases oil capacity by 3.5 quarts, promoting better cooling and lubrication during severe towing and fleet operations. The transmission features revised oil circuits and a new converter lock-up valve to boost lock-up pressures, resulting in more efficient power transfer and reduced heat build-up.
The upgraded clutch counts across the transmission stages provide increased torque capacity: 8 clutches in C1, 7 in C2, and 6 in C3 and C4, with a 17% to 75% increase over stock configurations. These enhancements improve shift firmness and longevity under demanding conditions. Each transmission is dyno-tested to ensure quality and reliability before installation.
Complementing the transmission is a high-performance torque converter with an enhanced stall for street and towing applications. Cast aluminum stators deliver improved torque multiplication, lower RPM response, and increased efficiency, which translates into better fuel economy and less heat generation. The converter’s design includes furnace-brazed fins and a stamped-forged steel front cover for durability, supporting up to triple the lock-up clutch material of stock units. This combination ensures smooth engagement and reliable operation under severe loads.
Constructed with premium high-energy friction materials, the entire assembly is engineered for maximum drivetrain reliability, especially in demanding commercial and fleet environments. The package also features a furnace-brazed aluminum transmission pan for superior heat dissipation, extending component life and performance. Each component is built to meet rigorous standards, making this package a robust upgrade for heavy-duty towing and daily fleet duties, backed by a 36-month/150,000-mile parts warranty and a 12-month/24,000-mile labor warranty.

Features:

• Heavy-duty aluminum deep transmission pan increases oil capacity by 3.5 quarts for improved cooling

• Increased clutch counts across all transmission stages enhance torque capacity and durability

• Enhanced stall torque converter with cast aluminum stators for better street/towing performance

• Premium high-energy friction materials provide smooth engagement and long-term reliability

Fitment:
Chevrolet Silverado 2500 HD Base 2004 to 2005
Chevrolet Silverado 2500 HD LS 2004 to 2005
Chevrolet Silverado 2500 HD LT 2004 to 2005
Chevrolet Silverado 2500 HD WT 2004 to 2005
Chevrolet Silverado 3500 Base 2004 to 2005
Chevrolet Silverado 3500 LS 2004 to 2005
Chevrolet Silverado 3500 LT 2004 to 2005
Chevrolet Silverado 3500 WT 2004
GMC Sierra 2500 HD Base 2004 to 2005
GMC Sierra 2500 HD SLE 2004 to 2005
GMC Sierra 2500 HD SLT 2004 to 2005
GMC Sierra 2500 HD WT 2004 to 2005
GMC Sierra 3500 Base 2004 to 2005
GMC Sierra 3500 SLE 2004 to 2005
GMC Sierra 3500 SLT 2004 to 2005
GMC Sierra 3500 WT 2004 to 2005