ATS 309-853-4290 Stage 5 Allison LCT1000 Crate Transmission | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY PTO 2WD

Features:

• Built for 2004.5-2005 LLY Duramax 2WD
• Includes ATS Five Star Torque Converter
• Equipped with ATS Co-Pilot Controller
• Billet input and intermediate shafts included
• Enhanced billet P2 carrier and C2 hub
• Deep transmission pan for better cooling
• Optimized for PTO-equipped applications
• Handles high horsepower and torque loads
• Improves shift quality and transmission control
• Ideal for towing and heavy-duty performance
• Designed to increase durability and lifespan
• Professional installation strongly recommended

Take Your Transmission Confidence To The Next Level

When you're looking to push the performance of your LLY Duramax truck, you need a transmission package that won't flinch under pressure. The ATS Stage 5 Crate Transmission is built to handle tough jobs, long hauls, and aggressive tuning without skipping a beat. Whether you're towing heavy loads or upgrading for serious street performance, this 2WD PTO-equipped transmission offers the strength and precision you need to drive with confidence. It includes the proven ATS Five Star Torque Converter, known for efficiently transferring power while staying cool under stress. Backed by a deep transmission pan and Co-Pilot Transmission Controller, this package delivers smoother shifts and enhanced control for any driving condition. If you're ready to ditch stock limitations and invest in long-term durability, this package checks all the boxes. Built for those who demand more and settle for nothing less.

Engineered For Reliable High Performance Under Load

This Stage 5 LCT1000 transmission package from ATS is purpose-built for the 2004.5–2005 Duramax LLY platform running 2WD with a PTO configuration. It features premium billet components including a billet input shaft, intermediate shaft, P2 carrier, and modified P1 sun gear paired with a billet C2 hub to eliminate known weak points. The included Five Star Torque Converter is engineered to reduce slippage and improve lockup in high torque applications. The deep transmission pan increases fluid capacity and helps manage heat more effectively during heavy use. ATS also includes their intelligent Co-Pilot Transmission Controller to refine shift strategy and protect the transmission from damage under aggressive throttle or load. All components are designed to work together as a complete solution for increased holding power, smoother operation, and long-term durability. Whether you’re upgrading for performance, reliability, or both, this package offers professional-grade engineering in a drop-in crate assembly.

Fits: 2004.5, 2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY PTO 2WD

Notes:

• This transmission package is designed specifically for 2004.5-2005 GM 2500HD/3500HD 6.6L Duramax LLY 2WD models with PTO.
• A $500 shipping surcharge will be added to the order total.
• Includes ATS Five Star Torque Converter for improved power transfer.
• Billet components provide increased strength and reliability under high load conditions.
• ATS Co-Pilot Transmission Controller included for enhanced shift control and protection.
• Designed to handle increased horsepower and torque from performance upgrades.
• Recommended for trucks that are heavily modified or used for towing and hauling.
• Transmission pan increases fluid capacity for better cooling.
• Ensure proper installation and pairing with compatible engine tuning for best results.
• Transmission must be installed by a qualified technician to ensure warranty coverage.