Stage 3 Allison LCT1000 Crate Transmission

Features:

• Complete Stage 3 transmission package
• Includes ATS Five Star torque converter
• Comes with deep transmission pan
• Includes ATS Co-Pilot transmission controller
• Billet input shaft for added strength
• Designed for 4WD trucks with PTO
• Improves torque handling and reliability
• Engineered for 6.6L LML Duramax engines
• Optimized for heavy-duty applications
• $500 shipping surcharge applies at checkout

Reinforce Your Allison for Real-World Duramax Power

If your LML Duramax is tuned, towing heavy, or just starting to push the limits of what your factory transmission can handle, it might be time to step up to a more capable setup. The ATS 309-835-4362 Stage 3 Allison LCT1000 Crate Transmission is built to help your truck keep up with real-world demands. This package includes ATS’s fully upgraded Allison LCT1000 transmission designed for 4WD trucks with PTO. It comes with their proven Five Star torque converter to deliver stronger, more efficient torque transfer, and a deep transmission pan that adds extra fluid capacity to help control heat. Whether you’re towing up steep grades or using your truck as a weekend warrior, this package provides the strength and cooling performance your Allison needs to keep going.

Complete Package With Advanced Control and Durability

This isn’t just a transmission swap—it’s a complete performance package built to improve durability and drivability. ATS includes a billet input shaft to handle increased torque, along with their Co-Pilot Transmission Controller, which helps manage shift timing and torque converter lockup for a smoother, more controlled driving experience. Together, these components work to prevent common transmission failures while helping you make the most of your Duramax power. With a typical three-week build time and a $500 round-trip shipping charge, ATS makes it easy to upgrade without the guesswork. If you’re ready to move beyond stock limitations and protect your investment, this Stage 3 package is built to handle the job.

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