Stage 3 Allison LCT1000 Crate Transmission

Features:

• Built for 2011–2016 LML Duramax trucks
• Complete Stage 3 transmission package
• Includes ATS Five Star torque converter
• Co-Pilot controller for precision shifting
• Billet input shaft for added strength
• Deep pan increases fluid capacity
• Designed for 4WD applications
• Handles high-performance towing demands
• Improves transmission durability and control
• Reduces transmission temps under heavy load
• Ships with all major components included
• ATS-engineered for proven reliability

Unleash the Full Potential of Your LML Duramax

If you're tired of babying your 2011–2016 Duramax because of transmission limitations, the ATS Stage 3 Allison LCT1000 Crate Transmission Package is the solution you've been waiting for. Built specifically for 4WD GM 2500HD and 3500HD trucks, this transmission isn't just a drop-in replacement—it's a serious upgrade. Whether you're towing heavy, daily driving, or chasing performance gains, this setup delivers the durability and control your LML needs. The transmission comes mated with ATS’s proven Five Star torque converter for improved torque multiplication and reduced slippage, ensuring your truck hooks up with confidence under load or during acceleration.

Built for Abuse, Tuned for Precision

This Stage 3 crate package is engineered for demanding use, featuring a billet input shaft for added strength, a deep transmission pan to improve fluid cooling, and ATS's Co-Pilot transmission controller for intelligent shift management. It’s designed to hold power reliably, minimize heat, and increase longevity under stress. From worksite to weekend toy hauler, you’ll notice smoother shifts, stronger launches, and less drama when the pressure’s on. It's everything you need to keep your Duramax running hard without the fear of transmission failure holding you back.

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

Includes:

• ATS 4WD 2011-2016 Allison LCT1000 Performance Transmission
• ATS Allison LCT1000 Five Star Torque Converter (302-950-4368)
• ATS Allison LCT1000 Deep Transmission Pan (301-900-4248)
• ATS Co-Pilot Transmission Controller (601-924-4368)
• Billet Input Shaft
  

Note: $500 Shipping surcharge will be added at checkout