ATS 309-987-4248 Lct1000 5 Speed Stage 2 Transmission Package | 2001-2002 GM 2500HD/3500HD 8.1L Gas 2WD

Features:

• Fits 2001–2002 GM 2500HD and 3500HD 2WD trucks
• Built specifically for 8.1L gas engine applications
• Includes ATS-built Allison LCT1000 5-speed transmission
• Comes with ATS TripleLok torque converter
• Includes extra deep ATS transmission pan
• ATS CoPilot controller enhances transmission performance
• Designed for towing and moderate performance upgrades
• Improves torque handling and shift control
• Increases cooling capacity and fluid volume
• Plug-and-play installation with no tuning required
• Ideal for heavy loads and daily driving
• $500 shipping surcharge added at checkout

Stop Letting Your Transmission Hold Back Your 8.1L

If your 2001 or 2002 GM 2500HD or 3500HD 2WD is running the powerhouse 8.1L gas engine, then you know it has plenty of grunt under the hood, but if the transmission is starting to feel sluggish or unreliable, it's time to step up. The ATS Stage 2 LCT1000 Transmission Package is designed to give your truck the performance, durability, and confidence it deserves. This complete upgrade package includes a fully built ATS Allison LCT1000 transmission, TripleLok torque converter, extra deep pan for improved cooling, and the ATS CoPilot controller for optimized shifting and torque management. Whether you're towing heavy loads or just want smoother and more responsive driving, this setup handles the pressure without breaking a sweat. It's built to deal with heat, weight, and power in ways your factory trans simply can't match. With plug-and-play compatibility and no tuning required, it’s one of the most straightforward ways to take your truck from functional to formidable. If you’re ready to drive harder and worry less, this package makes it happen.

Built For Real Power Control And Long Term Performance

The ATS 309-987-4248 Stage 2 Transmission Package delivers a precision-engineered solution for drivers who need more than their factory setup can offer. Designed specifically for 2001–2002 GM 2500HD and 3500HD 2WD trucks with the 8.1L gas engine, this system centers around a fully upgraded Allison LCT1000 5-speed automatic transmission. Internally reinforced to handle higher torque loads and elevated temperatures, the transmission is matched with ATS’s TripleLok torque converter for stronger lock-up performance and more efficient power transfer. The included extra deep pan increases fluid capacity and promotes better heat dissipation, which is essential for maintaining performance during towing or extended highway pulls. At the core of the package is the ATS CoPilot electronic transmission controller, giving your truck improved shift strategies, better torque management, and smoother operation under all conditions. No custom tuning is needed, and installation is designed to be straightforward for experienced mechanics. This kit is ideal for drivers who demand better response, cooler temps, and extended transmission life in a high-output gas application.

Fits: 2001, 2002 GM 2500HD/3500HD 8.1L Gas 2WD

Notes:

• Fits 2001–2002 GM 2500HD and 3500HD 2WD trucks
• Designed for use with the 8.1L gas engine only
• Includes ATS-built Allison LCT1000 5-speed transmission
• Package features ATS TripleLok torque converter
• Comes with extra deep ATS transmission pan for cooling
• Includes ATS CoPilot electronic transmission controller
• No custom tuning or reprogramming required for installation
• Ideal for towing, heavy hauling, and high-demand driving
• System improves shift quality and torque management
• Built to handle increased power and higher heat levels
• Professional installation is strongly recommended
• $500 shipping surcharge will be added at checkout