ATS 309-822-4362 Stage 2 Allison LCT1000 Crate Transmission | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML 2WD

Features:

• Fits 2011–2016 Silverado and Sierra 2WD trucks
• Built for 6.6L Duramax LML engine applications
• Includes ATS Stage 2 LCT1000 transmission
• Comes with ATS Five Star torque converter
• Deep transmission pan improves cooling and capacity
• Includes ATS Co-Pilot transmission controller
• Ready to install with no tuning needed
• Improves torque handling and shift performance
• Great for towing and high-load applications
• Ideal for heavy-duty work or daily use
• Shipped fully assembled and tested
• $500 shipping surcharge applied at checkout

Give Your Duramax The Transmission Upgrade It Deserves

If your 2011 to 2016 Silverado or Sierra 2WD is powered by the LML Duramax, there’s no reason to let a stock transmission limit your truck’s performance. The ATS Stage 2 Allison LCT1000 Crate Transmission Package is built for those who want more confidence when towing, better drivability under load, and a transmission that won’t flinch under pressure. This package includes everything you need to give your truck a major performance boost, starting with the ATS-built LCT1000 transmission, designed to handle more torque and heat than the factory unit. The included Five Star torque converter delivers stronger lockup and reduced slippage, which means more efficient power to the wheels. A deep transmission pan keeps things running cooler, especially when hauling or working in demanding conditions. The ATS Co-Pilot controller finishes off the package by giving your truck smarter, smoother shifting without the need for tuning or complicated setup. Whether you’re towing a trailer or just looking for better day-to-day dependability, this transmission package delivers the muscle your Duramax deserves.

Reinforced For Torque Control And Thermal Efficiency

The ATS 309-822-4362 Stage 2 Crate Transmission is engineered to meet the demands of 2011–2016 GM 2500HD and 3500HD 2WD trucks running the 6.6L LML Duramax. At the heart of this upgrade is a fully rebuilt and fortified Allison LCT1000 transmission, equipped with upgraded internal components that improve torque capacity and longevity under high-stress driving. This system includes the ATS Five Star torque converter, specifically tuned for stronger lockup and efficient torque multiplication to support heavy towing and acceleration. To maintain optimal fluid temperatures, the deep transmission pan increases cooling capacity and fluid volume, helping reduce wear during long hauls or repeated stop-and-go use. The included ATS Co-Pilot transmission controller automatically manages shift points, line pressure, and converter behavior to enhance control without requiring reprogramming or aftermarket tuning. The system ships fully assembled and ready for bolt-in installation, making it an ideal solution for experienced diesel owners and mechanics alike. Built to handle high load conditions and deliver smoother shifts under power, this package is a proven upgrade for serious Duramax drivers.

Fits: 2011, 2012, 2013, 2014, 2015, 2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML 2WD

Notes:

• Fits 2011–2016 Silverado and Sierra 2500HD/3500HD 2WD models
• Designed for use with 6.6L Duramax LML engines
• Includes ATS-built Stage 2 Allison LCT1000 transmission
• Comes with ATS Five Star torque converter
• Deep transmission pan increases fluid capacity and cooling
• Co-Pilot controller provides enhanced shift management and control
• No custom tuning or programming required after installation
• Ideal for towing, heavy loads, and daily performance use
• Ships fully assembled and ready for bolt-in installation
• Professional installation is recommended for best results
• $500 shipping surcharge will be applied at checkout