ATS 309-832-4440 Stage 3 Allison LCT1000 Crate Transmission | 2017-2019 GM 2500HD/3500HD 6.6L Duramax L5P 2WD

Features:

• Built for 2017-2019 2WD Duramax trucks
• Includes ATS Five Star Torque Converter
• High-capacity deep transmission pan included
• ATS Co-Pilot Transmission Controller
• Billet input shaft for added strength
• Supports heavy towing and performance builds
• Improves torque transfer and shift quality
• Designed to reduce heat and wear
• Precision-built for long-term durability
• Full crate transmission for easy install

Built for Big Power and Real-World Work

If you’re pushing serious power through your 2017–2019 Duramax L5P 2WD and tired of the stock Allison falling short, the ATS 309-832-4440 Stage 3 Transmission is your fix. Designed from the ground up to handle heavy towing, aggressive driving, and high-horsepower builds, this complete crate package includes ATS’s performance-built LCT1000 transmission, their legendary Five Star torque converter, and a deep transmission pan to keep things cool under load. It’s the kind of upgrade that doesn’t just survive high stress—it thrives in it. Whether you’re hauling heavy trailers or chasing quarter-mile times, this setup offers the confidence you need when your truck is working hard.

Strength Where It Counts

What makes this transmission package stand out isn’t just its upgraded components—it’s how they all work together. The billet input shaft adds crucial durability up front, while the ATS Co-Pilot Transmission Controller ensures intelligent, crisp shifts that adapt to both daily driving and high-demand situations. The torque converter delivers improved torque multiplication for better off-the-line performance, while the deep pan increases fluid capacity and helps regulate heat during long pulls or hot summer days. Built for reliability and longevity, this system gives your 2WD L5P Duramax the drivetrain backbone it should’ve come with from the factory.

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

Includes:

• ATS 2WD 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