ATS 309-824-4272 Stage 2 Allison LCT1000 Crate Transmission | 2003-2004 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7 4WD

Manufacturer: ATS Diesel Performance

SKU: ATS309-824-4272
Price
$6,538.95
Ships From Manufacturer in 15-20 Days
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Features:

  • Fits 2003-2004 6.6L LB7 Duramax 4WD
  • Includes ATS performance-built LCT1000 transmission
  • Comes with ATS Five Star torque converter
  • Features ATS deep transmission pan
  • Includes ATS Co-Pilot transmission controller
  • Improves shift quality and torque capacity
  • Enhances towing and performance capabilities
  • Increases cooling and fluid capacity
  • Complete bolt-in transmission package
  • Built for heavy-duty and high-power builds

Durability and Control for Your LB7 Workhorse

If you’ve been pushing your 2003–2004 GM Silverado or Sierra 2500HD/3500HD with a 6.6L LB7 Duramax and feel your stock transmission holding you back, the ATS Stage 2 Allison LCT1000 Crate Transmission Package is exactly what you need to bring your truck up to the task. This complete, bolt-in solution is designed for 4WD trucks and comes fully equipped with ATS’s performance-built LCT1000 transmission. It includes the proven ATS Five Star torque converter for better torque management and improved low-end drivability, making it ideal for towing, hauling, or running added power. The package also features ATS’s deep transmission pan, which increases fluid capacity and helps manage heat during demanding driving conditions.

Advanced Shift Control and Heavy-Duty Performance

What makes this package stand out even more is the ATS Co-Pilot Transmission Controller. This advanced control module fine-tunes your transmission’s shift timing and torque converter lock-up, giving you better control and protection when the workload increases. Whether you’re daily driving, towing heavy trailers, or tackling performance upgrades, this package delivers a noticeable improvement in drivability and durability. It’s designed to handle real-world demands and eliminate the common failure points of the factory transmission. Just keep in mind that this package ships via freight, and a $500 shipping fee will apply at checkout. It’s a small price to pay for peace of mind and long-term transmission reliability.

Fits: 2003, 2004 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7 4WD

Includes:

  • ATS 4WD 2003- Early 2004 Allison LCT1000 Performance Transmission
  • ATS Allison LCT1000 Five Star Torque Converter (302-950-4248)
  • ATS Allison LCT1000 Deep Transmission Pan (301-900-4248)
  • ATS Co-Pilot Transmission Controller (601-924-4248)

Note: $500 Shipping surcharge will be added at checkout

Year Ranges Make Model Series Engine
2003-2004 GM/Chevrolet/GMC Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7/6.6L Duramax LLY
Property Values
Year Ranges 2003-2004
Make GM/Chevrolet/GMC
Model Silverado/Sierra
Series 2500HD/3500HD
Engine 6.6L Duramax LB7/6.6L Duramax LLY

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