ATS 309-988-4308 Lct1000 6 Speed Stage 2 Transmission Package | 2006-2007 GM 2500HD/3500HD 8.1L 4WD

Features:

• Fits 2006-2007 GM 2500HD and 3500HD
• Designed for 8.1L gas engine trucks
• Includes ATS built LCT1000 transmission
• TripleLok torque converter for max durability
• Deep pan improves cooling and fluid capacity
• CoPilot controller enhances shift performance
• Ideal for towing and heavy load conditions
• Stage 2 setup supports moderate performance upgrades
• Improves transmission life under stress
• Optimized for 4WD applications
• Includes $500 shipping surcharge at checkout

Upgrade Your Towing Game Without Looking Back

When it comes to serious hauling with your 2006-2007 GM 2500HD or 3500HD powered by the 8.1L gas engine, you need a transmission package that can handle the job without flinching. The ATS LCT1000 Stage 2 Transmission Package is built to take everything your truck can throw at it and then some. Whether you're pulling heavy trailers through mountain passes or just want that extra confidence on long road trips, this setup is made to deliver smooth, consistent power transfer and cooler operating temps. The included TripleLok Torque Converter locks down power for better towing, while the deep transmission pan helps manage heat even in the harshest driving conditions. And with the CoPilot Transmission Controller, you’ll notice smarter shifting and better control right out of the box. This isn’t just an upgrade, it’s a must-have for anyone who demands more from their truck than the stock setup can deliver. If you're investing in performance and reliability, this package pays you back every mile.

Technology That Pushes Beyond The Stock Limitations

Behind the performance of this Stage 2 ATS transmission package is a suite of components designed to improve strength, longevity, and shift quality. The LCT1000 automatic transmission is rebuilt by ATS to handle higher torque loads, which is especially important for 8.1L gas-powered rigs towing or working hard. The TripleLok Torque Converter offers triple-disc clutching and precise lockup control, ensuring efficient power transfer while minimizing slip under heavy load. The included ATS CoPilot controller interfaces with vehicle inputs such as boost pressure, throttle position, and vehicle speed to actively manage transmission behavior. This results in optimized pressure control and reduced clutch wear during demanding use. The extra deep transmission pan provides greater fluid capacity and cooling, keeping internal temps in check even under prolonged strain. Altogether, this system creates a more durable and predictable driving experience, especially valuable in a high-performance or work-focused truck.

Fits: 2006, 2007 GM 2500HD/3500HD 8.1L 4WD

Notes:

• Designed for 2006-2007 GM 2500HD/3500HD trucks with the 8.1L gas engine
• Stage 2 transmission upgrade built for moderate towing and daily driving
• Includes ATS TripleLok Torque Converter for improved power transfer
• Comes with ATS CoPilot electronic transmission controller for advanced tuning
• Extra deep transmission pan helps manage fluid temperature under load
• Ideal for trucks used for towing, work, or light performance
• Not a stock replacement—built to exceed OEM transmission capabilities
• ATS rebuilds the LCT1000 transmission to handle increased torque
• Shipping surcharge of $500 applies at checkout
• Professional installation is recommended for best performance and reliability