Stage 4 Allison LCT1000 Crate Transmission

Features:

• Complete Stage 4 Allison transmission package
• Fits 2006-2007 6.6L Duramax 4WD trucks
• Includes ATS Five Star torque converter
• Deep pan increases cooling and fluid capacity
• ATS Co-Pilot controller improves shift control
• Billet input and output shafts for durability
• Ideal for towing and high-performance builds
• Engineered for Silverado and Sierra HD models
• Designed for LBZ, LLY, and LMM engines
• Improves reliability under heavy load and power
• $500 shipping surcharge applies at checkout

A Transmission Upgrade That Keeps Up With Your LBZ

If you’ve been pushing your 2006-2007 Duramax harder than stock, you’ve likely started wondering how long your factory Allison is going to keep up. Whether it’s towing heavy, running larger tires, or stacking on performance parts, these trucks can easily surpass the limits of the stock transmission. The ATS Stage 4 Allison LCT1000 Crate Transmission is built to meet that challenge. Specifically designed for 4WD Silverado and Sierra 2500HD/3500HD trucks with the LBZ, LLY, or LMM engines, this fully assembled transmission package gives you the strength and reliability you need to handle real-world demands without hesitation. From the daily grind to weekend trailering, this transmission is ready to back you up.

Complete System Designed for Real-World Performance

This isn’t just a transmission swap—it’s a complete performance package. It includes the ATS Five Star torque converter to help your truck put power to the ground more effectively, whether you’re towing up a grade or accelerating on the highway. The deep transmission pan keeps things cooler by increasing fluid capacity, which is essential when your truck sees hard use. The included ATS Co-Pilot Transmission Controller manages shift timing and pressure, giving you smoother, more reliable shifting no matter the load. Inside the transmission, billet input and output shafts provide the added durability needed to handle high torque applications without the risk of snapping under pressure. Built for owners who expect more from their trucks, this Stage 4 package delivers. A $500 shipping surcharge will apply at checkout.

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