ATS 309-824-4362 Stage 2 Allison LCT1000 Crate Transmission | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML 4WD

Features: - Fits 2011–2016 Silverado and Sierra 4WD trucks - Designed for 6.6L Duramax LML engine applications - Includes ATS Stage 2 LCT1000 transmission - Comes with Five Star torque converter included - Features extra deep transmission pan for cooling - Includes ATS Co-Pilot transmission controller - Built to handle increased power and torque - Improves shift quality and towing performance - Fully assembled and ready for installation - Plug-and-play install with no tuning required - Ideal for towing and heavy-duty use - $500 shipping surcharge applied at checkout Bring Your Duramax To Life With A Transmission That Keeps Up When your 2011 to 2016 Duramax is built to pull, haul, and hustle, your transmission needs to do more than just keep up, it needs to lead the charge. The ATS Stage 2 Allison LCT1000 Crate Transmission Package transforms your 2500HD or 3500HD 4WD into a truck that feels sharper, shifts smarter, and pulls harder than ever before. Designed for the 6.6L LML Duramax, this complete package gives you the strength and confidence to handle heavy loads or added horsepower without breaking a sweat. The included Five Star torque converter delivers firm, efficient power transfer while the deep transmission pan helps keep temps under control when you're working your truck the way it was built to be used. With ATS’s Co-Pilot controller onboard, you'll notice smoother shifting, better torque management, and overall drivability that just feels right. Whether you’re towing a camper, hauling gear, or just demanding more out of your rig, this package takes your transmission from a factory weak point to a performance stronghold. It’s not just a replacement—it’s a serious upgrade for serious drivers. Purpose Built For Power Durability And Intelligent Control The ATS 309-824-4362 Stage 2 Crate Transmission is engineered for 2011–2016 GM Silverado and Sierra 2500HD or 3500HD trucks equipped with the 6.6L Duramax LML and 4WD. At its core is a fully upgraded Allison LCT1000 transmission, reinforced with internal components designed to withstand increased power output and long-term towing stress. The package includes ATS’s Five Star torque converter, which improves torque multiplication, enhances lock-up performance, and reduces slippage under load. To further optimize cooling, the extra deep transmission pan increases fluid capacity and helps regulate heat during extended hauling or high-performance use. The ATS Co-Pilot transmission controller brings advanced electronic control to the system, improving line pressure, shift timing, and torque converter management without requiring tuning or reprogramming. Installation is designed to be straightforward for experienced techs, and all components arrive fully assembled and ready to bolt in. This setup is ideal for owners who rely on their truck day in and day out and expect consistent, controlled power delivery with long-lasting durability. It is a complete, no-compromise solution for upgrading a factory transmission that struggles under modern demands. Fits: 2011, 2012, 2013, 2014, 2015, 2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML 4WD Notes: - Fits 2011–2016 Silverado and Sierra 2500HD/3500HD 4WD models - Specifically designed for 6.6L Duramax LML engine applications - Includes ATS Stage 2 Allison LCT1000 transmission - Comes with ATS Five Star torque converter for better lock-up - Deep transmission pan improves fluid capacity and cooling - Includes ATS Co-Pilot controller for enhanced shift control - No custom tuning or reprogramming required for installation - Transmission is shipped fully assembled and ready to install - Ideal for towing, performance, and heavy-duty daily use - Professional installation is highly recommended - $500 shipping surcharge will be added at checkout