ATS 309-852-4440 Stage 5 Allison LCT1000 Crate Transmission | 2017-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P 2WD

Features:

• Complete Stage 5 crate transmission package
• Includes ATS Five Star torque converter
• Equipped with ATS Co-Pilot transmission controller
• Features billet input and intermediate shafts
• Billet P2 carrier and C2 hub installed
• Includes deep transmission pan for added cooling
• Built for 2017–2019 2WD L5P Duramax trucks
• Designed to handle extreme horsepower and torque
• Ideal for towing, racing, and heavy-duty use
• Engineered for Allison LCT1000 transmission platform
• Offers improved durability over stock components
• $500 shipping surcharge applies to this product

Put Massive Power To The Ground With Total Confidence

If you're building your L5P Duramax to push serious power and want a transmission that can handle everything you throw at it, the ATS Stage 5 Allison LCT1000 Crate Transmission is the all-in package you’ve been waiting for. Built for 2017–2019 Silverado and Sierra 2500HD or 3500HD 2WD trucks, this setup is made to take abuse from high horsepower builds, big towing loads, and aggressive driving without flinching. With the included ATS Five Star torque converter and Co-Pilot transmission controller, you're getting smooth, controlled shifts and a whole new level of drivability. It’s the kind of upgrade that transforms how your truck feels, delivering instant power when you need it and durability that holds strong under pressure. Whether you’re hauling heavy trailers or launching down the strip, this transmission gives you the control and reliability to match your performance goals. Plus, ATS includes their deep transmission pan for added fluid capacity and cooling. This is more than a replacement, it’s the foundation for the kind of build that doesn’t hold back.

Engineered To Handle Extreme Load And High Output Builds

The ATS 309-852-4440 Stage 5 Allison LCT1000 Crate Transmission is a complete performance transmission system designed specifically for 2017–2019 GM 2WD trucks with the 6.6L L5P Duramax engine. It features a fully rebuilt Allison LCT1000 transmission that has been reinforced with billet internal components, including a billet input shaft, billet intermediate shaft, billet P2 carrier, and a billet C2 hub with a modified P1 sun gear. These upgrades provide maximum strength under high torque loads, making this package ideal for aggressive towing and racing applications. The included ATS Five Star torque converter offers enhanced torque multiplication and low-speed efficiency, while the ATS Co-Pilot controller ensures precise shift control and clutch management. The deep transmission pan increases fluid capacity for better thermal control and long-term durability. Designed as a turn-key solution for high-performance builds, this crate transmission delivers significantly improved reliability and power handling compared to the stock unit. It is ready to bolt in, but please note a $500 shipping surcharge applies due to freight requirements.

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

Notes:

• Designed for 2017–2019 GM 2500HD/3500HD 2WD with 6.6L L5P Duramax
• Includes fully built Stage 5 Allison LCT1000 transmission
• Comes with ATS Five Star torque converter for improved efficiency
• Includes ATS Co-Pilot transmission controller for advanced shift control
• Features billet input shaft and intermediate shaft for increased strength
• Equipped with billet P2 carrier and billet C2 hub with modified P1 sun gear
• Deep transmission pan increases fluid capacity and cooling
• Ideal for high horsepower, towing, and racing applications
• Crate transmission designed as a complete bolt-in solution
• $500 shipping surcharge will be added due to freight