Stage 6 Allison LCT1000 Crate Transmission

Features:

• Fits 2006-2007 6.6L Duramax LBZ 4WD
• Complete Stage 6 transmission package
• Includes Five Star torque converter
• Features deep ATS transmission pan
• Comes with ATS Co-Pilot controller
• Built with billet input and output shafts
• Includes billet intermediate shaft
• Upgraded billet P2 carrier and C2 hub
• Modified P1 sun gear for added strength
• Designed for high horsepower applications
• PTO compatible for added utility
• $500 shipping surcharge applies

Built to Handle Power, Torque, and Tough Jobs

If you're putting serious power down with your LBZ Duramax, you already know the stock Allison transmission has its limits. That’s where the ATS Stage 6 Allison LCT1000 Crate Transmission steps in. This complete package is purpose-built for 2006–2007 Silverado and Sierra 2500HD/3500HD trucks equipped with the 6.6L Duramax and 4WD with PTO. Whether you're daily driving a tuned truck, towing heavy loads, or hammering it on the strip, this setup is designed to hold up. It comes fully loaded with high-strength internals, including billet input, output, and intermediate shafts, plus a billet P2 carrier and modified P1 sun gear to keep the power flowing without compromise.

Every Component Upgraded for Consistent Performance

What makes this transmission package stand out is the attention to detail in every component. You’re not just getting a beefed-up transmission, you're getting the full system—starting with the ATS Five Star torque converter for reliable torque multiplication and fast engagement. The deep ATS transmission pan helps with cooling and fluid capacity, while the included Co-Pilot transmission controller adds intelligence to the shifts, letting you dial in performance as needed. This setup is ideal for high horsepower builds that demand smooth, reliable shifting under extreme conditions. It also retains PTO functionality, making it a solid choice for both work and play. Just keep in mind there’s a $500 shipping surcharge, but for what you're getting, it's well worth the investment if you want peace of mind behind the wheel.

Fits: 2006, 2007 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LBZ PTO 4WD