ATS 309-814-4308 Stage 1 Allison LCT1000 Crate Transmission | 2006-2007 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LBZ 4WD

Features:

• Fits 2006-2007 LBZ Duramax 4WD trucks
• Includes built ATS LCT1000 transmission
• Five Star torque converter for smooth shifts
• Deep pan design improves cooling capacity
• Improves towing reliability and drivability
• Ideal for light performance or work use
• Designed to reduce slippage under load
• Durable build for long-term dependability
• Compatible with LBZ, LLY, and LMM engines
• Transmission is fully dyno tested before shipping
• Stage 1 upgrade over stock performance levels
• $500 shipping surcharge added at checkout

Upgrade Your Shift Confidence With Proven Transmission Strength

If your LBZ Duramax is starting to show signs of transmission wear or you’re looking to build a rig that won’t flinch under pressure, the ATS Stage 1 Allison LCT1000 Transmission Package is exactly the kind of upgrade that makes sense. Designed specifically for 2006-2007 GM 2500HD and 3500HD trucks, this 4WD transmission package helps restore confidence in your truck’s ability to pull, haul, and hold up to heavy use. Whether you're towing a trailer through the mountains or just trying to make your workhorse more dependable on the job, this complete system includes everything you need to get the job done right. You get ATS’s trusted Five Star torque converter, known for delivering responsive power without sacrificing smoothness, plus a deep transmission pan that improves fluid capacity and helps manage heat. When reliability matters most, you want a transmission built to do more than just survive. This Stage 1 build was engineered for those who expect their drivetrain to work as hard as they do. If you're putting your trust in a big diesel truck, you shouldn’t have to second guess what’s happening under the cab.

Built For Durability With Engineered Performance In Mind

Under the hood, the ATS Stage 1 LCT1000 transmission package is more than just a stock replacement. This system is dyno-tested and designed to hold strong under the added stress of mild performance upgrades and real-world towing applications. At the core is ATS’s reworked Allison LCT1000 transmission for 4WD applications, which features updated internals and improved clutch packs for enhanced holding capacity. The included Five Star torque converter uses a billet cover and multi-disc clutch setup that helps maintain efficient torque transfer under load. Meanwhile, the deep pan not only increases fluid capacity, but also aids in reducing operating temperatures, especially useful during long highway runs or stop-and-go hauling. Everything is built with longevity in mind, giving you a package that supports consistent line pressure and lockup control without slipping or hesitation. It’s a thoughtful balance of OEM compatibility and aftermarket durability that helps your truck perform like it should. Whether you’re daily driving, working the oil fields, or pulling your weekend toy hauler, this transmission system is built to meet the challenge.

Fits: 2006, 2007 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LBZ 4WD

Notes:

• Designed specifically for 2006-2007 LBZ Duramax 4WD models
• Includes performance-built LCT1000 transmission by ATS
• Comes with Five Star billet torque converter for improved power transfer
• Deep transmission pan increases fluid capacity and helps reduce temps
• PTO-compatible for vehicles requiring power take-off functionality
• Not intended for high horsepower competition use
• Transmission is built to handle light towing and mild performance upgrades
• Ideal for daily driving, towing, and general heavy-duty use
• Includes all necessary components for installation
• Dyno-tested to ensure reliability and shift quality
• $500 shipping surcharge will apply at checkout
• Transmission core return may be required, depending on seller terms