ATS 309-813-4332 Stage 1 Allison LCT1000 Crate Transmission | 2007.5-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LMM PTO 2WD

Features:

• Fits 2007.5-2010 GM 2500HD and 3500HD
• Designed for 6.6L Duramax LMM engines
• Built for 2WD trucks with PTO provision
• Includes ATS Five Star Torque Converter
• Comes with ATS Deep Transmission Pan
• Stage 1 performance upgrade from factory unit
• Improves durability for towing and hauling
• Enhanced cooling for long transmission life
• Reduces slippage under heavy load conditions
• Optimized for street and work applications
• Direct bolt-in replacement with no modifications
• $500 shipping surcharge applies at checkout

When You Want Confidence Behind The Wheel

If you're building your Duramax for serious work or play, upgrading the transmission isn’t a luxury, it’s a necessity. The ATS Stage 1 Allison LCT1000 Crate Transmission gives your 2007.5-2010 GM 2500HD or 3500HD the confidence it needs to handle towing, daily driving, or even spirited street pulls. This setup is perfect for anyone who wants better reliability without jumping into full-race territory. It includes ATS’s proven Five Star Torque Converter and deep transmission pan, giving you stronger lockup performance and cooler fluid temps when the job gets long. Whether you're pulling a trailer up a grade or putting your foot into it off the line, this transmission delivers consistent, confident performance. The 2WD design with PTO support also makes it ideal for utility builds or fleet workhorses. If your stock trans has seen better days, this package is a great move toward longer life and better drivability.

Engineered To Handle Heat Load And Horsepower

This transmission package is designed with longevity and performance in mind, built specifically for the demands of the 6.6L Duramax LMM from 2007.5 to 2010. At the heart of the system is the upgraded ATS Performance Transmission, reinforced to handle higher torque levels and reduce internal slippage under heavy load. The ATS Five Star Torque Converter enhances power transfer with multi-disc lockup capability, reducing heat generation and delivering better throttle response. The included deep transmission pan adds fluid capacity and improves cooling efficiency, which is essential for high-load applications like towing or commercial use. Built for 2WD trucks with PTO provisions, it allows integration with auxiliary equipment commonly found on service or utility vehicles. All components are designed for direct bolt-in fitment, making installation straightforward for shops or experienced DIYers. This Stage 1 package strikes a solid balance between performance and durability without stepping into full-blown competition territory.

Fits: 2007, 2008, 2009, 2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LMM PTO 2WD

Notes:

• Designed specifically for 2007.5-2010 GM 2500HD/3500HD 6.6L LMM Duramax trucks
• Compatible with 2WD configurations equipped with PTO
• Stage 1 package focuses on durability and drivability
• Includes ATS Five Star Torque Converter for better power transfer
• Features ATS Deep Transmission Pan for improved cooling
• Ideal for light towing and performance street applications
• Not intended for extreme racing or heavy competition use
• Transmission is built for improved heat management and longevity
• Direct fit installation for easy replacement of factory transmission
• $500 shipping surcharge applies at checkout
• ATS Performance Transmission helps reduce internal slippage
• Supports PTO-driven accessories for work and utility trucks