Maximize durability and towing confidence with the BD Diesel 1064742SS TowMaster Transmission & Converter Package for 2007–2010 Chevy LMM Duramax 6.6L (2WD). This drop-in Allison 1000 upgrade addresses common failure points with improved clutch counts, refined oil circuits, and a stator sprag update in the converter that solves OEM weaknesses.
Dyno-tested and designed for daily driving, towing, or heavy-duty use, this matched transmission and converter combo handles heat, horsepower, and torque with zero compromises. Whether you're hauling loads or daily driving a tuned Duramax, TowMaster delivers.
💰 $2,100 Refundable Core Charge Required
⏱️ Install Time: ~7 Hours
✅ Key Features:
Transmission:
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BD HD aluminum deep sump pan adds +3.5 quarts fluid capacity
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Revised oil circuits for smoother flow and less wear
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High-energy frictions and new lock-up valves for better clutch engagement
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New A & B trim valves boost line pressure to key clutches
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Fully dyno-tested for guaranteed performance
Increased Clutch Counts:
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C1: 8 clutches (14% over stock)
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C2: 7 clutches (17% over stock)
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C3: 7 clutches (75% over stock)
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C4: 7 clutches (17% over stock)
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C5: 7 clutches (17% over stock)
Torque Converter:
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Reinforced double cage stator sprag prevents OEM failure points
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Torque multiplying cast aluminum stators for towing & street
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Furnace-brazed turbine fins and stamp-forged steel cover
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Lower RPM stall = better throttle response
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Triple the lock-up clutch material for superior holding power
🚙 Vehicle Compatibility:
Fits the following 2WD GM diesel applications:
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2007–2010 Chevrolet Silverado 2500HD/3500HD 6.6L Duramax LMM (2WD)
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2007–2010 GMC Sierra 2500HD/3500HD 6.6L Duramax LMM (2WD)
❌ Does not fit 4WD or LBZ/LLY/LMF platforms.
📦 What’s Included:
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TowMaster BD Allison 1000 Transmission
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ProForce HD Torque Converter (Street/Towing)
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BD Deep Sump Transmission Pan
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Upgraded lock-up & trim valves
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Enhanced frictions & clutch packs
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Fully dyno-tested & ready to install
🛠️ Why Choose BD Diesel?
BD Diesel goes beyond rebuilding — it re-engineers. With decades of drivetrain expertise, BD's matched transmission and converter combos are tested together, not just built apart. You’ll gain performance, reliability, and confidence for your Duramax — especially under load.