ATS 309-835-4440 Stage 3 Allison LCT1000 Crate Transmission | 2017-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P PTO 4WD

Features:

• Complete Stage 3 Allison transmission package
• Includes ATS Five Star torque converter
• Comes with deep transmission pan
• Includes ATS Co-Pilot transmission controller
• Features billet input shaft for durability
• Designed for 4WD trucks with PTO
• Improves power handling and reliability
• Built for heavy-duty and performance use
• Engineered for 6.6L L5P Duramax engines
• $500 shipping surcharge applies at checkout

Proven Strength for Serious Towing and Performance Builds

If you’ve built your L5P Duramax to handle more power or take on heavy workloads, you need a transmission that’s up for the challenge. The ATS 309-835-4440 Stage 3 Allison LCT1000 Crate Transmission is built to handle what the factory unit simply can’t. Designed for 4WD models with PTO capability, this package gives you a fully upgraded drivetrain solution that’s ready to put power to the ground. It includes ATS’s performance-built Allison transmission, their proven Five Star torque converter for smooth and reliable torque transfer, and a deep transmission pan that boosts fluid capacity to help keep temperatures in check. Whether you’re towing, hauling, or running tuned power levels, this package gives you the confidence to push your truck without worrying about transmission failure.

Advanced Components Built for Long-Term Durability

ATS doesn’t just rebuild these units—they engineer them for real-world performance. The package comes complete with their billet input shaft for added strength, and the ATS Co-Pilot Transmission Controller to optimize shift timing and torque converter lock-up. This helps you maintain drivability and control under load, whether you’re pulling a trailer or launching from a stop. Everything works together to extend the life of your transmission while delivering the performance you expect from your Duramax. While there’s a $500 shipping surcharge, what you get is a complete, ready-to-install package designed to handle the demands of serious diesel owners. It’s the perfect choice if you’re ready to upgrade your drivetrain and take your truck’s reliability and performance to the next level.

Fits: 2017, 2018, 2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P PTO 4WD