Stage 3 Allison LCT1000 Crate Transmission

Features:

• Includes Five Star Torque Converter
• Co-Pilot Controller for Smarter Shifting
• Billet Input Shaft for Extra Strength
• Deep Pan Improves Cooling Efficiency
• Built for 2007.5–2010 LMM Duramax
• Ideal for Towing and Performance Builds
• Compatible with 4WD Applications
• Fully Assembled Crate Transmission
• Enhanced Torque Handling Capabilities
• Engineered for Heavy-Duty Abuse
• Reduces Slippage Under Load
• Durable Construction with Proven Components

Built for Big Power and Serious Towing

If you're putting real power down in your 2007.5–2010 Duramax-powered 2500HD or 3500HD and relying on it for heavy towing or performance builds, the ATS Stage 3 Allison LCT1000 Crate Transmission is purpose-built to keep up. This isn’t just a refreshed stock replacement—it’s a fully upgraded performance transmission designed to handle the torque of modified LMM Duramax engines. With a billet input shaft, deep transmission pan, and ATS’s Co-Pilot transmission controller, you’re getting smarter shifting, more efficient cooling, and bulletproof strength—all bundled in one ready-to-run package.

Serious Upgrades, Street and Strip Ready

This package also includes ATS’s proven Five Star torque converter, which delivers efficient power transfer and reduced slippage under load—ideal for towing, racing, or high-output daily driving. The Co-Pilot controller adds intelligent shift strategies and clutch management to help extend transmission life even under aggressive use. Whether you’re building a high-horsepower street truck or a dependable tow rig that doesn’t flinch under pressure, this crate transmission delivers the kind of durability, control, and peace of mind serious diesel owners demand.

Fits: 2007.5, 2008, 2009, 2010 GM 2500HD/3500HD 6.6L Duramax LMM 4WD

Includes:

• ATS 4WD 2007.5-2010 Allison LCT1000 Performance Transmission
• ATS Allison LCT1000 Five Star Torque Converter (302-950-4248)
• ATS Allison LCT1000 Deep Transmission Pan (301-900-4248)
• ATS Co-Pilot Transmission Controller (601-924-4326)
• Billet Input Shaft
  

  Note: $500 Shipping surcharge will be added at checkout