ATS 309-812-4308 Stage 1 Allison LCT1000 Crate Transmission | 2006-2007 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LBZ 2WD

Features:

• Fits 2006–2007 LBZ Duramax 2WD trucks
• Includes upgraded Five Star torque converter
• Heavy-duty ATS deep transmission pan included
• Ideal for towing and daily driving
• Improved clutch pack durability
• Designed for 6.6L Duramax diesel engines
• Enhanced torque handling capacity
• Built for improved heat dissipation
• Upgraded internal components for reliability
• Complete drop-in crate transmission package
• Backed by ATS quality and engineering
• Additional $500 freight charge at checkout

Get The Confidence You Need Behind The Wheel

If you’ve been pushing your 2006-2007 LBZ Duramax and feel like the factory transmission just isn’t keeping up, the ATS Stage 1 Allison LCT1000 Crate Transmission is exactly what you need. This isn’t some basic rebuild, it’s a full performance package that’s built to handle the power, heat, and torque your truck dishes out daily. Whether you’re towing a trailer cross-country or just need dependable drivability for the long haul, this transmission gives you the peace of mind you’ve been missing. The included ATS Five Star torque converter is tuned for quick engagement and better efficiency, so you’ll feel the difference every time you press the pedal. You also get a deep transmission pan that helps with fluid capacity and cooling, which means less stress during those long uphill pulls or hot summer days. This crate transmission is designed to drop right in, saving you time and getting you back on the road with less hassle. It’s built by a team that understands what diesel owners expect, strength, reliability, and performance without compromise.

Built To Handle The Job Without Breaking A Sweat

Under the surface, the ATS Stage 1 LCT1000 transmission is engineered with upgraded clutch packs, valve body modifications, and internal components that raise the bar on durability. It’s specifically calibrated for 2WD 2006-2007 GM Silverado and Sierra 2500HD/3500HD trucks equipped with the 6.6L LBZ Duramax engine. This setup is perfect for drivers looking for a transmission that can support light modifications or increased towing demands while keeping shift quality smooth and consistent. The Five Star torque converter isn’t just stronger, it’s precision-built to minimize slippage and deliver improved power transfer through all driving conditions. Paired with the deep transmission pan, you get better thermal control which is critical when you're hauling heavy loads or running in high-temperature environments. Every component is designed with long-term performance in mind, reducing wear and tear over time. ATS didn’t cut corners with this package, they built it for truck owners who need real-world durability and performance that lasts.

Fits: 2006, 2007 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LBZ 2WD

Notes:

• Designed exclusively for 2WD 2006–2007 GM 2500HD/3500HD LBZ Duramax models
• Not compatible with 4WD or non-LBZ engine configurations
• Crate transmission includes converter and pan—no need to purchase separately
• Built for mild performance upgrades and heavy towing applications
• Professional installation strongly recommended due to transmission complexity
• Transmission is built to order and may involve lead times
• Shipping surcharge of $500 is applied at checkout
• Core return policy may apply—check return requirements before purchase
• Ideal for trucks experiencing slipping, overheating, or shifting issues
• Upgraded components offer better longevity than stock units
• Ensure supporting driveline components are in good condition before installation