ATS 309-834-4440 Stage 3 Allison LCT1000 Crate Transmission | 2017-2019 GM 2500HD/3500HD 6.6L Duramax L5P 4WD

Features:

• Fits 2017-2019 6.6L L5P Duramax
• Complete 4WD transmission upgrade package
• Includes ATS Five Star torque converter
• Deep transmission pan for better cooling
• Co-Pilot controller for precise shift control
• Billet input shaft adds strength and durability
• Built to handle high horsepower applications
• Improves towing performance and reliability
• Ideal for tuned or modified L5P trucks
• Fully assembled and ready to install
• Engineered for heavy-duty diesel demands
• Backed by ATS performance expertise

Heavy-Duty Performance for Demanding Builds

If your 2017–2019 Duramax L5P is built for more than just cruising, the ATS 309-834-4440 Stage 3 Allison LCT1000 Crate Transmission is the serious upgrade your truck needs. Designed specifically for 4WD GM 2500HD/3500HD models, this crate package is built to take abuse in high-performance towing, hauling, or racing setups. At its core, you get a fully upgraded Allison LCT1000 transmission paired with a billet input shaft for added strength under stress. The included Five Star Torque Converter boosts torque multiplication and delivers smoother, more efficient power transfer, especially when your foot’s to the floor or you're hauling heavy.

Precision Control, Cooler Temps, and Reliability Built In

What sets this package apart isn’t just brute strength—it’s how smart it is. The ATS Co-Pilot Transmission Controller manages line pressure and shift strategies in real time, protecting the trans while keeping shifts crisp and responsive. A deep transmission pan improves fluid capacity and helps regulate temps during hard use, while every component from the converter to the case is engineered to handle serious horsepower. Whether you’re towing max loads, hitting the sled pull track, or daily driving a modified truck, this transmission gives you the confidence to push your setup harder without second guessing what’s going on underneath.

Includes:

• ATS 4WD 2017-2019 Allison LCT1000 Performance Transmission
• ATS Allison LCT1000 Five Star Torque Converter (302-950-4440)
• ATS Allison LCT1000 Deep Transmission Pan (301-900-4248)
• ATS Co-Pilot Transmission Controller (601-924-4440)
• Billet Input Shaft
  

Note: $500 Shipping surcharge will be added at checkout