ATS 309-988-4248 Lct1000 5 Speed Stage 2 Transmission Package | 2001-2002 GM 2500HD/3500HD 8.1L Gas 4WD

Features:

• Fits 2001–2002 GM 2500/3500 4WD trucks
• Designed for 8.1L gas engine applications
• Includes ATS-built Allison LCT1000 5-speed transmission
• Comes with ATS TripleLok torque converter
• ATS CoPilot controller improves transmission performance
• Extra deep ATS transmission pan included
• Built for improved towing and power handling
• Ideal for moderate performance and daily use
• Increases transmission durability under heavy load
• Fully assembled and ready to install
• Compatible with factory 4WD drivetrains
• $500 shipping surcharge applies at checkout

Turn Your Heavy Duty Gas Truck Into A Towing Beast

If you're driving a 2001 or 2002 GM 2500 or 3500 with the 8.1L gas engine, you already know you've got serious power under the hood. But if your stock transmission is starting to feel the strain from towing, hauling, or aggressive driving, it might be time for an upgrade that keeps up. The ATS Stage 2 LCT1000 Transmission Package is built to handle more power, more heat, and more abuse without flinching. This complete package includes a fully built ATS version of the Allison LCT1000 5-speed automatic, paired with their proven TripleLok torque converter and deep transmission pan for added fluid capacity. It even comes with the ATS CoPilot electronic transmission controller, giving you improved shift timing and torque management without needing extra tuning. Whether you're pulling a trailer up a mountain or just want peace of mind on your daily commute, this kit transforms your drivetrain into something you can truly rely on. It’s a serious solution for anyone who expects more out of their gas-powered heavy-duty truck.

Designed For Strength Control And Cooler Operation Under Load

The ATS 309-988-4248 Stage 2 Transmission Package is a high-performance upgrade designed specifically for 2001–2002 GM 2500 and 3500 4WD trucks equipped with the 8.1L gas engine. This package centers around a fully reengineered Allison LCT1000 5-speed automatic transmission, built by ATS to handle higher horsepower, increased torque loads, and elevated operating temperatures. It includes the ATS TripleLok torque converter, designed for lock-up strength and improved power transfer, especially under towing or loaded driving conditions. The extra deep ATS transmission pan not only holds more fluid but also improves cooling, helping to extend the life of the transmission when used in demanding environments. To round it out, the ATS CoPilot transmission controller ensures adaptive shift strategies, better clutch engagement, and torque converter control without reprogramming your vehicle. This is a drop-in package designed for plug-and-play use with no tuning required, giving you stronger internal components and smarter control all in one upgrade. Whether you're building for longevity, control, or added confidence behind the wheel, this system is made to take your transmission to the next level.

Fits: 2001, 2002 GM 2500HD/3500HD 8.1L Gas 4WD

Notes:

• Fits 2001–2002 GM 2500 and 3500 4WD trucks
• Designed for 8.1L gas engine applications only
• Includes ATS-built Allison LCT1000 5-speed transmission
• Package includes ATS TripleLok torque converter
• Comes with ATS CoPilot electronic transmission controller
• Extra deep transmission pan improves fluid capacity and cooling
• No additional tuning or programming required for installation
• Built to handle increased power and towing stress
• Ideal for work trucks, tow rigs, or performance applications
• $500 shipping surcharge will be applied at checkout
• Professional installation strongly recommended for best performance