BD Diesel 1064724BM TorqueMaster Allison 1000 Transmission & Converter – 2004.5–2006 Chevy/GMC LLY 6.6L Duramax (5-Speed 4WD, Billet Input)

Upgrade your Allison 1000 with the BD Diesel 1064724BM TorqueMaster Package—engineered for high-horsepower Duramax applications and heavy towing. This package includes a dyno-tested transmission with a Billet Input Shaft and a Triple Torque Converter built to take serious punishment. Ideal for 2004.5–2006 LLY 4WD trucks pushing more than stock power, this system provides unmatched torque handling, smoother shifts, and greater fluid cooling capacity.

💰 $2,100 Refundable Core Deposit Required
⏱️ Estimated Install Time: 9 Hours

✅ Key Features

Transmission Highlights:

• Billet Input Shaft handles aggressive throttle, tuned power, and added torque

• BD Aluminum HD Deep Pan adds 3.5 quarts of fluid capacity

• Revised oil circuits and high-energy frictions for better cooling and durability

• Converter lock-up valve + A & B trim valves provide full clutch pressure

• Increased clutch packs for each gearset:

  • C1: 8 clutches (+14%)

  • C2: 7 clutches (+17%)

  • C3: 7 clutches (+75%)

  • C4: 7 clutches (+17%)

  • C5: 7 clutches (+17%)

• Dyno-tested for shift quality and strength

Triple Torque Converter Highlights:

• Triple Disc design for superior lock-up strength

• HD springs reduce shock load

• Taller rebuildable cover with forged 1-piece design

• Trapezoid teeth reduce wear and eliminate chatter

• Cast stator with new sprag components for long-term torque delivery

• Furnace-brazed turbine fins improve fluid coupling

• 12 lbs lighter than competing converters

• Thrust bearings (not plastic washers) for maximum reliability

🚙 Vehicle Compatibility

• 2004.5–2006 Chevrolet Silverado 2500HD/3500HD 6.6L LLY Duramax (5-Speed 4WD)

• 2004.5–2006 GMC Sierra 2500HD/3500HD 6.6L LLY Duramax (5-Speed 4WD)

🔧 Designed for use with the Allison 1000 5-speed automatic transmission.

📦 What’s Included

• BD TorqueMaster Allison 1000 Transmission with Billet Input Shaft

• BD Triple Disc Torque Converter (dyno-matched)

• BD Heavy-Duty Deep Sump Transmission Pan

• Fully upgraded clutch packs, trim valves, and oil circuit enhancements

🛠️ Why BD Diesel?

BD Diesel delivers rugged, dyno-proven drivetrain upgrades that tackle the demands of towing, off-roading, and street performance. Their TorqueMaster transmissions are precision-built for trucks making serious power—and come matched with heavy-duty torque converters for full drivetrain harmony.