Stage 5 Allison LCT1000 Crate Transmission

Features:

• Fits 2017–2019 6.6L L5P Duramax 2WD
• Includes PTO-compatible Stage 5 transmission
• Comes with ATS Five Star torque converter
• Equipped with deep transmission pan
• Includes ATS Co-Pilot transmission controller
• Billet input and intermediate shafts included
• Billet P2 carrier and C2 hub for strength
• Modified P1 sun gear for improved durability
• Built for heavy-duty towing and performance
• Delivers better torque transfer and reliability
• Designed to reduce internal transmission failures
• Requires $500 shipping surcharge at checkout

Unlock The Full Potential Of Your Duramax

If you're serious about taking your Duramax-powered truck to the next level, the ATS Stage 5 Allison LCT1000 Crate Transmission is built to handle the power and demand your factory setup can't. Whether you're towing heavy loads or pushing performance limits, this transmission is engineered to put your power to the ground with smooth and reliable shifts. With the included Five Star torque converter and ATS Co-Pilot transmission controller, you're getting a system designed to improve torque delivery and responsiveness while maintaining durability under pressure. The billet internals mean added strength where it matters most, especially under extreme load or spirited driving conditions. It’s a perfect upgrade for trucks used in commercial, off-road, or high-performance applications. This is more than just a replacement, it’s an investment in your truck’s long-term capability. If you want confidence in every gear, ATS has your back.

Built With Billet Strength And Intelligent Control

The ATS Stage 5 Allison LCT1000 transmission package comes packed with premium components designed to handle aggressive power levels and demanding workloads. It includes a billet input shaft and intermediate shaft, a billet P2 carrier, and a billet C2 hub mated with a modified P1 sun gear for reinforced internal strength. These enhancements work together to reduce failure-prone weak points and provide consistent power transfer even under load. The transmission features a deep pan for increased fluid capacity and improved cooling, which helps extend the life of the system. Integrated with the ATS Co-Pilot controller, this package enables better shift logic and adaptive line pressure control, helping to reduce clutch wear and enhance drivability. It's a direct-fit solution for 2017–2019 GM trucks with 2WD and PTO setups, ensuring seamless compatibility. Whether you're hauling, racing, or daily driving, this transmission delivers precision and toughness where it counts.

Fits: 2017, 2018, 2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P PTO 2WD

Notes:

• Designed for 2017–2019 GM 2500HD/3500HD with 6.6L L5P Duramax and 2WD configuration.
• Compatible with PTO-equipped trucks only.
• Includes billet input and intermediate shafts for added strength.
• Comes with a billet P2 carrier and billet C2 hub featuring a modified P1 sun gear.
• Includes ATS Five Star torque converter for improved torque multiplication and efficiency.
• Deep transmission pan increases fluid capacity and cooling performance.
• ATS Co-Pilot controller helps manage line pressure and shift strategies.
• Built to handle increased horsepower and torque from performance upgrades.
• Engineered for improved durability and reduced clutch failure under heavy load.
• Professional installation recommended due to the complexity of the system.
• A $500 shipping surcharge will be applied at checkout.