ATS 309-824-4332 Stage 2 Allison LCT1000 Crate Transmission | 2007.5-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LMM 4WD

Features:

• Fits 2007.5–2010 Silverado and Sierra 4WD models
• Designed for 6.6L Duramax LMM engine applications
• Includes ATS-built Stage 2 Allison LCT1000 transmission
• Comes with ATS Five Star torque converter
• Features deep pan for added cooling capacity
• Includes ATS Co-Pilot transmission controller
• Improves torque transfer and towing performance
• Built to handle increased power and stress
• No tuning or reprogramming needed for install
• Fully assembled and ready to bolt in
• Ideal for heavy-duty daily use and performance
• $500 shipping surcharge applied at checkout

Take Your Duramax From Capable To Unstoppable On The Road

If your 2007.5 to 2010 Duramax is still relying on a factory transmission, you’re not getting the full potential out of your truck. The ATS Stage 2 Allison LCT1000 Crate Transmission Package is built to transform the way your Silverado or Sierra handles power, towing, and long-haul reliability. Whether you're pulling a trailer through the mountains or daily driving with confidence, this setup is made to work as hard as your 6.6L LMM Duramax. It includes the fully built ATS Allison LCT1000 transmission, the ATS Five Star torque converter for solid power delivery, and a deep pan that helps keep transmission temps in check when things heat up. The Co-Pilot controller gives you smarter, more responsive shifts without needing custom tuning or programming. You can install it and immediately feel the difference in control and consistency. It’s a serious step up for anyone tired of worn-out shifting and questionable towing performance. If you demand more from your truck, this transmission delivers exactly that.

Engineered To Handle More Torque Heat And Hauling Demands

The ATS 309-824-4332 Stage 2 Crate Transmission Package is designed specifically for 2007.5–2010 GM 2500HD and 3500HD 4WD trucks with the 6.6L Duramax LMM engine. At its core is a fully reinforced Allison LCT1000 transmission, upgraded with high-strength internals to manage elevated power levels and long-duration towing loads. The Five Star torque converter enhances torque multiplication while maintaining firm lockup, reducing slippage and improving efficiency under heavy acceleration or while towing. The included deep transmission pan increases fluid capacity and promotes better thermal stability, which helps extend the life of the transmission in high-demand scenarios. The Co-Pilot transmission controller plays a critical role, adjusting line pressure and shift timing for more precise, reliable gear changes. This setup requires no custom tuning and is shipped fully assembled for a straightforward installation process. Built for drivers who push their trucks beyond factory limits, this transmission package offers improved performance, better drivability, and greater long-term durability. It's the kind of upgrade that adds strength where it matters most.

Fits: 2007.5, 2008, 2009, 2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LMM 4WD

Notes:

• Fits 2007.5–2010 Silverado and Sierra 2500HD/3500HD 4WD models
• Designed specifically for trucks with the 6.6L Duramax LMM engine
• Includes ATS-built Stage 2 Allison LCT1000 transmission
• Package includes ATS Five Star torque converter
• Deep transmission pan improves cooling and fluid capacity
• ATS Co-Pilot controller enhances shifting and torque management
• No custom tuning or programming is required
• Ideal for towing, performance upgrades, and daily use
• Ships fully assembled and ready for installation
• Professional installation is strongly recommended
• $500 shipping surcharge will be added at checkout