Stage 5 Allison LCT1000 Crate Transmission

Features:

• Fits 2011-2016 6.6L LML Duramax 4WD
• Includes PTO-capable Allison LCT1000 transmission
• ATS Five Star torque converter included
• Comes with deep transmission pan
• Includes billet input and output shafts
• Billet intermediate shaft for added strength
• ATS Co-Pilot transmission controller included
• Engineered for heavy towing and high power
• Built to handle extreme driving conditions
• Complete Stage 5 performance transmission kit

Designed for Hard Work and High Horsepower

If you own a 2011 to 2016 Silverado or Sierra HD with the 6.6L LML Duramax and you’re pushing more power than stock, the ATS Stage 5 Allison LCT1000 Crate Transmission is the upgrade your truck needs. This package is built for 4WD models equipped with PTO and includes everything you need for serious durability and drivability. At the heart of the system is the ATS-modified Allison LCT1000 transmission, paired with the Five Star torque converter that delivers smooth engagement and improved torque transfer under heavy load. Whether you’re hauling equipment, towing a trailer, or tuning for performance, this setup ensures your transmission won’t be the weak link.

Heavy-Duty Internals with Smart Control Features

This Stage 5 package includes billet input, output, and intermediate shafts designed to handle increased power and torque without sacrificing reliability. The deep transmission pan improves fluid capacity and cooling, while the ATS Co-Pilot Transmission Controller gives you better shift control and line pressure adjustment to match your driving demands. It’s a fully engineered system built to perform under stress and maintain drivability for daily use or aggressive towing. If you're investing in power, you need a transmission that can keep up. This ATS Stage 5 kit delivers that confidence without compromise.

Fitment: 2011, 2012, 2013, 2014, 2015, 2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML PTO 4WD