Drivetrain
DPC Allison Triple Disc Torque Converter (DPCALLTDTC) for 2001-2016 Duramax LB7 / LLY / LBZ / LMM / LML 6.6L
The DPC Allison Triple Disc Torque Converter (DPCALLTDTC) is designed for 2001-2016 6.6L Duramax trucks. It features a triple disc design with 200 percent more clutch surface area than stock. With billet construction and stall options, it is built for durability. This converter supports towing and daily driving applications. A two-year warranty and refundable core charge are included.
DPC Allison Single Disc Torque Converter (DPCALLSDTC) for 2001-2016 Duramax LB7 / LLY / LBZ / LMM / LML 6.6L
The DPC Allison Single Disc Torque Converter (DPCALLSDTC) is designed for 2001-2016 6.6L Duramax trucks. It is rated up to 450 horsepower and features an oversized clutch for improved holding power. With billet construction and multiple stall options, it is built for durability. This converter supports daily driving and towing applications. A two-year warranty and refundable core charge are included.
DPC Allison Billet Triple Disc Torque Converter (DPCALLBTDTC) for 2001-2016 Duramax LB7 / LLY / LBZ / LMM / LML 6.6L
The DPC Allison Billet Triple Disc Torque Converter (DPCALLBTDTC) is designed for 2001-2016 6.6L Duramax trucks. It features a triple disc design with 200 percent more clutch surface area than stock. With billet construction and multiple stall options, it is built for durability. This converter supports towing and performance applications. A lifetime warranty and refundable core charge are included.
Merchant Automotive Rear Housing Transmission Support (10186) for 2001 – 2007 Duramax equipped with Allison Transmission
Duramax transmission rear housing support strengthens 2001–early 2007 trucks prone to cracking from driveline vibration. Built from DOM steel tubing and plate steel, this Allison transmission housing support helps prevent costly damage. Easy installation with factory bolts makes it a smart reinforcement upgrade.
Transfer Case Pump Upgrade and Repair Kit – Seal Driver and Pump (10775) for 2001-2007 Duramax 261XHD 263XHD
Merchant Automotive transfer case pump upgrade prevents pump rub failure in 2001-early 2007 GM NP261XHD and NP263XH transfer cases. This all in one kit includes necessary parts to repair and upgrade transfer cases needing rear case replacement due to pump rub.
South Bend Super Street Dual Disc, 750hp, 1300 torque (SSDDMAX-CBY) for 2001-2005 Duramax LB7 / LLY
$2,139.90The South Bend SSDDMAX-CBY Super Street Dual Disc clutch is designed for 2001–2005 Duramax LB7 and LLY trucks with the ZF6 manual transmission. This clutch is rated to handle up to 750 horsepower and 1300 lb-ft of torque. The dual-disc design provides excellent holding power while maintaining street-friendly drivability. It also supports towing loads exceeding 30,000 pounds. The complete kit includes all necessary components for installation.
Sun coast CAT3 700 HP CUSTOM ALLISON TRANSMISSION WITH CONVERTER (GMAX-CAT3-LB7-0103-4WD) for 2001-2004 Duramax LB7
$10,710.00Sun Coast Allison transmission upgrades strengthen critical drivetrain components for high horsepower Duramax applications. The package includes a billet flexplate, billet input shaft, triple disc torque converter, and reinforced clutch components. These upgrades improve torque capacity, durability, and reliability under heavy loads. SunCoast transmissions are designed for towing, performance builds, and competition use.
Suncoast CAT3 700 HP CUSTOM ALLISON TRANSMISSION WITH CONVERTER (GMAX-CAT3-LB7-0103-2WD) for 2001-2004 Duramax LB7
$10,710.00This Sun Coast Allison transmission build strengthens key drivetrain components for high horsepower Duramax trucks. The package includes a billet flexplate, billet input shaft, triple disc torque converter, upgraded clutch materials, and reinforced planetary components. These upgrades increase torque capacity and reliability for towing, performance builds, and competition use.
Suncoast CAT1 500 HP CUSTOM ALLISON TRANSMISSION WITH CONVERTER 2WD (GMAX-CAT1-LB7-0103-2WD) for 2001-2004 Duramax LB7
The Sun Coast CAT1 500 HP Allison transmission GMAX-CAT1-LB7-0103-2WD is built for 2001–2004 Duramax LB7 trucks with a 2WD drivetrain. This upgraded transmission handles up to 500 horsepower while improving durability and shift quality. The package includes a matched high-performance torque converter for efficient power transfer. It provides a reliable upgrade for towing, daily driving, and mild performance builds.
Suncoast CAT1 500 HP CUSTOM ALLISON TRANSMISSION WITH CONVERTER 4WD (GMAX-CAT1-LB7-0103-4WD) for 2001-2003 Duramax LB7
The Sun Coast CAT1 500 HP Allison transmission GMAX-CAT1-LB7-0103-4WD is built for 2001–2003 Duramax LB7 trucks with a 4WD drivetrain. This upgraded transmission handles up to 500 horsepower while improving durability and shift performance. The package includes a matched high-performance torque converter for efficient power transfer. It provides a reliable upgrade for towing, daily driving, and mild performance builds.
South Bend Organic Street Dual Disc Clutch Kit (SDDMAXZ-ORG) for Duramax LB7 / LLY
The South Bend SDDMAXZ-ORG Organic Street Dual Disc Clutch is designed for GM 6.6L Duramax LB7 and LLY trucks. This Stage 2 clutch kit uses organic friction discs for smooth engagement and reliable street performance. Dual clutch discs increase torque capacity and improve heat management. The kit includes throw-out bearings and alignment tools for easier installation. Ideal for daily driving, towing, and moderate performance builds.
Fleece Replacement Transmission Medium Line (FPE-TL-LB7-LMM-MED-SER) for 2001-2010 Duramax LB7 / LLY / LBZ / LMM
The Fleece Replacement Transmission Medium Line (FPE-TL-LB7-LMM-MED-SER) is a durable aftermarket upgrade for 2001–2010 GM Duramax diesel trucks (LB7, LLY, LBZ, LMM). It replaces the factory transmission cooler line with a high-quality, heat- and abrasion-resistant option that improves reliability and performance. Designed for both stock and modified vehicles, it helps prevent common transmission cooling failures and offers an easy, direct-fit installation.
Fleece Replacement Transmission Long Line (FPE-TL-LB7-LMM-LONG-SER) for 2001-2010 Duramax LB7/ LLY / LBZ / LMM
The Fleece Replacement Transmission Long Line (FPE-TL-LB7-LMM-LONG-SER) is an upgraded transmission line kit for 2001–2010 GM Duramax diesel trucks with LB7, LLY, LBZ, or LMM engines. It replaces factory hard lines with durable braided stainless steel hoses to improve fluid flow, reduce leaks, and enhance reliability. Designed for both stock and performance applications, the kit includes all necessary fittings for easy installation and provides better transmission cooling and longevity.
Fleece Replacement Transmission Short Line (FPE-TL-LB7-LLY-SHORT-SER) for 2001-2005 Duramax LB7 / LLY
The Fleece Replacement Transmission Short Line (FPE-TL-LB7-LLY-SHORT-SER) is an aftermarket upgrade for 2001–2005 GM Duramax trucks with LB7 or LLY engines. It replaces factory transmission lines that are prone to cracking or leaking, offering enhanced durability and performance. Made from high-quality materials to handle high temperatures and pressures, it ensures a secure, leak-free connection between the transmission and cooler. Ideal for modified or performance applications, it improves reliability and simplifies installation, making it a popular choice among Duramax owners.
SINISTER DIESEL TRANSMISSION REAR HOUSING SUPPORT (SDRHSDMAXZF6) FOR 2001-2005 Duramax LB7 LLY using ZF6 transmission
The Sinister Diesel Transmission Rear Housing Support is designed for 2001-2005 GM Duramax trucks with LB7 and LLY engines using the ZF6 manual transmission. It provides additional support and durability to the transmission housing.
Sinister Diesel Transmission Rear Housing Support (SDRHSDMAX0107) for 2001-2007 Duramax LB7/LLY/LBZ with Allison transmission
The Sinister Diesel Transmission Rear Housing Support (SDRHSDMAX0107) is designed for 2001-2007 Duramax LB7, LLY, and LBZ engines with an Allison transmission. It reinforces the transmission’s rear housing, improving durability and reducing stress on critical components.
SINISTER DIESEL HIGH PERFORMANCE MOTOR MOUNTS (SDMMDMAX) FOR DURAMAX 2001-2010 LB7 / LLY / LBZ / LMM
Sinister Diesel High Performance Motor Mounts minimize drivetrain movement for better power transfer, smoother throttle transitions, and improved launches. They also enhance reliability, preventing wear and failure common in OEM mounts.
SUNCOAST ALLISON CAT1 500HP REBUILD KIT WITH CONVERTER (GMAX-CAT1-LB7LLY-KIT) FOR 2001-2005 DURAMAX LB7 / LLY
The SunCoast Allison CAT1 500HP Rebuild Kit with Converter (GMAX-CAT1-LB7LLY-KIT) is a heavy-duty transmission upgrade for 2001–2005 Duramax LB7 and LLY trucks. Designed to support up to 500 horsepower, it includes premium clutches, steels, gaskets, seals, and a high-performance torque converter to boost strength, reliability, and efficiency. Ideal for towing, racing, or high-demand use, the kit enhances durability and drivability for Allison 1000 transmissions.
Fleece Setrab to -10AN Fittings (FPE-TL-ST) for Fleece Performance replacement Allison Transmission cooler lines
The Fleece Performance Setrab to -10AN Fittings (FPE-TL-ST) are high-quality, corrosion-resistant components designed for seamless connection between Setrab transmission coolers and -10AN braided hoses. Specifically engineered for compatibility with Fleece’s Allison Transmission cooler line kits, these fittings ensure secure, leak-free connections and optimal fluid flow, making them ideal for performance applications where efficient transmission cooling is essential.
South Bend Single Disc Clutch 375 hp 700 ft. lbs. torque (SDM0105OK) for 2001-2005 Duramax 6.6L LB7 / LLY
The South Bend Single Disc Clutch (SDM0105OK) is designed for 2001–2005 Duramax 6.6L LB7 and LLY engines, offering improved durability and performance for daily drivers, work trucks, and lightly modified vehicles. Rated for up to 375 hp and 700 ft-lbs of torque, it delivers smooth engagement, strong holding power, and resistance to wear, making it ideal for towing and hauling while maintaining drivability and comfort.
Banks Ram-Air® Differential Cover Kit – Black Ops (19269)
Banks Differential Cover Kit 11.5/11.8-14 Bolt GM and Ram from 2001-2019 Black-Ops
BD Diesel Xtruded Double-Stacked Auxiliary Trans Cooler Kit 1/2 In Tube (1030606-DS-12) for 1994-2016 Cummins 5.9L / 6.7L & 2001-2016 Duramax LB7 / LLY / LBZ / LMM / LML
The BD Diesel Xtruded Double-Stacked Auxiliary Trans Cooler Kit (1030606-DS-12) is a heavy-duty transmission cooling upgrade for 1994–2016 Cummins and 2001–2016 Duramax diesel engines. Made from durable aluminum with 1/2-inch tubing, its double-stacked, extruded design enhances heat dissipation and airflow, lowering transmission temperatures—especially during towing or hauling. Ideal for diesel truck owners seeking better performance and transmission durability in demanding conditions.
BD Diesel Flexplate (1041260) for 2001-2019 Duramax LB7 / LLY / LBZ / LMM / LML / L5P
The BD Diesel Flexplate (1041260) is a heavy-duty, high-performance replacement for 2001–2019 GM Duramax diesel engines. Built from forged billet steel and SFI 29.3-approved, it handles up to 1,500 lb-ft of torque, making it ideal for high-horsepower setups and heavy towing. Designed for durability, it resists cracking and warping, is precision-balanced for smooth power transfer, and features a corrosion-resistant coating. It’s a reliable upgrade for both performance enthusiasts and hardworking diesel owners.
