ATS 309-864-4362 Stage 6 Allison LCT1000 Crate Transmission | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML 4WD

Features:

• Fits 2011–2016 LML Duramax 4WD models
• Includes ATS Stage 6 performance transmission
• Comes with Five Star torque converter
• Deep transmission pan improves cooling capacity
• Includes ATS Co-Pilot transmission controller
• Billet input, output, and intermediate shafts
• Features billet P2 carrier and C2 hub
• Supports high horsepower and heavy-duty use
• Built for towing, racing, and off-road abuse
• Enhances shift quality and transmission durability
• Ships as a complete ready-to-install unit
• $500 shipping surcharge applies

Let Your LML Duramax Run Wild Without Holding Back

If you’ve built your truck to haul harder, tow stronger, or just plain rip, then it’s time to back that power up with a transmission that can keep up. The ATS Stage 6 Allison LCT1000 Crate Transmission is the ultimate upgrade for your 2011–2016 LML Duramax 4WD. Whether you're pushing big horsepower or just want your drivetrain to handle aggressive towing without flinching, this package delivers. It comes fully loaded with billet shafts, a high-performance torque converter, and a deep pan to manage extra heat. You’ll also get the Co-Pilot transmission controller, which dials in shift points and pressure based on how you're driving. From the first time you hit the throttle, you’ll feel the difference in how power gets to the ground. This isn't just a replacement, it's a major performance leap for anyone who refuses to stay stock. If you're ready to build a drivetrain that matches your engine's potential, this is where it starts.

Engineered For Heavy Load And High Output Performance

The ATS Stage 6 Allison LCT1000 Transmission is a purpose-built performance system designed specifically for 2011–2016 6.6L LML Duramax 4WD trucks. It features billet input, output, and intermediate shafts for unmatched strength under extreme torque loads, preventing twisting or failure during heavy acceleration or towing. This transmission is equipped with the ATS Five Star Torque Converter, offering efficient power transfer with improved lock-up capabilities to handle tuned or high-horsepower builds. A deep transmission pan helps regulate fluid temperatures and prolong component life under demanding use. The package also includes the ATS Co-Pilot Transmission Controller, which adjusts line pressure and shift strategies in real time to ensure smooth and responsive gear transitions. Internals are further reinforced with a billet P2 carrier and C2 hub, paired with a modified P1 sun gear to enhance torque capacity and drivetrain reliability. This is a full crate transmission solution, ready to install out of the box and built for serious applications. A $500 shipping surcharge applies due to the size and weight of the unit.

Fits: 2011, 2012, 2013, 2014, 2015, 2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML 4WD

Notes:

• Compatible with 2011–2016 6.6L LML Duramax 4WD trucks.
• Includes ATS Five Star Torque Converter and Co-Pilot Controller.
• Comes as a complete crate transmission, ready to install.
• Built for high horsepower and heavy-duty use.
• Features billet input, output, and intermediate shafts.
• Billet P2 carrier and C2 hub increase torque handling.
• Deep transmission pan improves cooling and fluid capacity.
• Co-Pilot controller helps optimize shifting and line pressure.
• Ideal for towing, racing, or high-performance street use.
• $500 shipping surcharge applies due to size and weight.