BD Diesel 1064704SS TowMaster Allison Transmission Converter Package - 1000 2001-2004 LB7 4WD

The BD Diesel TowMaster Transmission and Torque Converter Package delivers a matched, dyno-tested drivetrain solution engineered specifically for 2001-2004 Chevrolet/GMC LB7 Duramax trucks with Allison 1000 transmissions and 4WD. This complete package combines a fully rebuilt heavy-duty transmission with a performance torque converter, designed to handle the increased power and torque demands of modified diesel engines while towing, street driving, or track use.

Transmission Enhancements:

• BD aluminum heavy-duty deep transmission pan increases fluid capacity by 3.5 quarts for improved cooling
• Significantly increased clutch pack counts across all clutch sets for enhanced durability and holding power
• C1: 8 clutches (14% increase over stock)
• C2: 7 clutches (17% increase over stock)
• C3: 7 clutches (75% increase over stock)
• C4: 7 clutches (17% increase over stock)
• C5: 7 clutches (17% increase over stock)
• High-energy friction materials for superior performance and longevity
• Revised oil circuits optimize hydraulic flow and pressure
• Upgraded converter lock-up valve boosts lock-up pressures for firmer engagement
• New A and B trim valves deliver full line pressure directly to clutch packs
• Each transmission is dyno tested before shipment to ensure quality and performance

Torque Converter Features:

• Enhanced stall speed optimized for street and towing applications
• Torque-multiplying cast aluminum stators for improved power transfer
• Lower RPM response compared to stock converter for better drivability
• More efficient operation reduces heat generation and improves fuel economy
• Stamp-forged steel front cover for maximum strength
• Furnace-brazed fins ensure long-term durability

Warranty Coverage:

• Parts: 36 months or 150,000 miles
• Labor: 12 months or 24,000 miles
• Racing and competition use not covered

Additional Information:

• Estimated installation time: 9 hours
• 50-state legal replacement part (does not require California EO)
• Complete matched transmission and converter package ready to install

When your LB7 Duramax demands more from your drivetrain, the BD Diesel TowMaster package provides the strength, reliability, and performance needed to handle increased power levels with confidence.