Built for increased strength and long-term durability, the BD Diesel 1064742 TowMaster Transmission is designed to replace the factory Allison 1000 6-speed in 2006–2007 LBZ Duramax 4WD trucks. Featuring upgraded clutch counts, revised oil circuits, and BD’s heavy-duty aluminum deep sump pan, this dyno-tested transmission is ideal for towing, hauling, or daily driving. This transmission is engineered for drivers who demand more from their drivetrain than the stock unit can offer.

💰 Refundable Core Deposit: $1,800 USD
❗ Converter not included — must be installed with a BD torque converter to maintain warranty.

✅ Key Features:

Transmission Highlights:

• Revised oil circuits for improved fluid pressure control

• High-energy friction materials for better durability under load

• Upgraded A & B trim valves provide full line pressure to clutches

• BD Deep Sump Aluminum Transmission Pan adds 3.5 quarts of fluid capacity

• Increased clutch counts for improved holding strength:

  • C1: 8 clutches (+14%)

  • C2: 7 clutches (+17%)

  • C3: 7 clutches (+75%)

  • C4: 7 clutches (+17%)

  • C5: 7 clutches (+17%)

• Each unit is dyno-tested before shipping

• Converter sold separately (see Part: 1064742SS for full package)

(BD Diesel Transmissions only have warranty when running a BD Trans & Converter)

🚙 Vehicle Compatibility:

• 2006–2007 Chevrolet Silverado 2500HD / 3500HD 6.6L LBZ Duramax (4WD)

• 2006–2007 GMC Sierra 2500HD / 3500HD 6.6L LBZ Duramax (4WD)

• Fits Allison 1000 6-speed automatic transmission applications

📦 What’s Included:

• BD TowMaster Allison 1000 Transmission

• BD Aluminum Deep Sump Transmission Pan

🛠️ Why BD Diesel?

BD Diesel's transmissions are engineered to solve OEM failure points while maximizing strength and performance. From towing heavy loads to street performance, BD’s proven clutch upgrades and reinforced internals are tested and tuned for real-world demands. Every BD transmission is dyno-tested to ensure quality and durability before it ever ships.