BD DIESEL 1064734 TOWMASTER CHEVY ALLISON 1000 TRANSMISSION 2006–2007 LBZ 5-SPEED 4WD

Product Description

The BD DIESEL 1064734 TowMaster Allison 1000 Transmission is a heavy-duty replacement transmission engineered for 2006–2007 Chevy Silverado and GMC Sierra trucks equipped with the LBZ 6.6L Duramax and 5-speed Allison 1000 transmission. Designed for reliability under towing, hauling, and daily driving, this TowMaster unit corrects factory shortcomings while maintaining smooth, predictable shift quality.

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This transmission is built with upgraded clutches and steels, revised hydraulic calibrations, and reinforced internal components to handle increased torque loads. The valve body is optimized for improved line pressure and clutch holding capacity, reducing slip and heat under load. Ideal for stock and mildly modified LBZ trucks, the TowMaster transmission delivers long service life and dependable performance for work and tow applications.

Fitment

• 2006–2007 Chevrolet Silverado 2500HD / 3500HD
• 2006–2007 GMC Sierra 2500HD / 3500HD
• 6.6L Duramax LBZ Diesel Engine
• Allison 1000 5-Speed Automatic
• 4WD models only

Key Features & Benefits

• Built TowMaster transmission for towing and work use
• Upgraded clutches and steels for increased torque capacity
• Optimized valve body calibration for improved line pressure
• Improved durability over factory Allison 1000 units
• Designed for stock to mildly modified engines

Cross-Reference & Compatible BD Diesel Products (BD DIESEL ONLY)

• BD DIESEL 1064732 TOWMASTER ALLISON 1000 TRANSMISSION 2001–2005 LB7/LLY 4WD
• BD DIESEL 1064736 TOWMASTER ALLISON 1000 TRANSMISSION 2006–2007 LBZ 2WD
• BD DIESEL 1064744 ROADMASTER ALLISON 1000 TRANSMISSION 2006–2007 LBZ 4WD

Is this transmission built for towing?

Yes. The TowMaster series is designed specifically for towing, hauling, and work applications where reliability and clutch holding power are critical.

Is a core charge required?

Yes. A refundable core charge applies to this transmission.

Is this compatible with stock tuning?

Yes. This transmission is designed to operate with factory tuning and stock power levels, as well as mild performance upgrades.

Specifications for BD DIESEL PRODUCTS 1064734