Stage 4 Allison LCT1000 Crate Transmission

Features:

• Complete Stage 4 Allison transmission package
• Fits 2001-2002 6.6L LB7 Duramax 4WD
• Includes ATS Five Star torque converter
• Deep pan improves cooling and fluid capacity
• ATS Co-Pilot controller enhances shift control
• Billet input and output shafts included
• Ideal for heavy towing and performance builds
• Compatible with PTO-equipped GM HD trucks
• Engineered for Silverado and Sierra 2500HD/3500HD
• Reinforced for increased power and torque
• $500 shipping surcharge applies at checkout

Make Your LB7 Duramax Transmission Work as Hard as You Do

If you’ve owned your 2001-2002 Duramax for a while, you already know the Allison transmission is a strong foundation, but it starts to show its limits when you add power or push your truck harder than stock. The ATS Stage 4 Allison LCT1000 Crate Transmission is built to give your LB7 the durability and performance it deserves. Designed for 4WD models with PTO functionality, this complete package comes fully assembled and ready to bolt in. Whether you’re towing heavy equipment, hauling long distances, or just looking to future-proof your drivetrain, this setup gives you the confidence to push your truck without worrying about transmission failure.

A Complete Performance Package That Delivers Results

ATS packs this transmission with their most trusted upgrades, starting with the Five Star torque converter that helps transfer power efficiently while improving low-end response under load. The included deep transmission pan increases fluid capacity and cooling, which is essential when you’re pulling heavy or running in hot conditions. With the ATS Co-Pilot Transmission Controller, you’ll get more consistent shift quality and better line pressure management, making your truck feel smoother and more responsive in every driving situation. Inside, billet input and output shafts replace the weak points of the factory design, giving you the strength needed to handle higher torque and horsepower. It’s the perfect package for turning your reliable LB7 into a serious workhorse. Just keep in mind, a $500 shipping surcharge will apply at checkout.

Fits: 2001, 2002 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7 PTO 4WD