Product Description
The ATS 309-813-4290 Stage 1 Allison LCT1000 Transmission Package is the ideal upgrade for 2004.5–2005 6.6L LLY Duramax trucks needing improved reliability, towing performance, and PTO functionality. Designed as a performance-enhanced replacement for the factory transmission, this 2WD unit addresses common OEM weaknesses while maintaining smooth drivability for daily use.
This Stage 1 package is perfect for stock to mildly modified trucks, offering increased clutch holding capacity, improved shift quality, and enhanced durability under load. With the addition of PTO capability, this transmission is ideal for work trucks requiring auxiliary power operation.
ATS integrates upgraded internal components and recalibration to ensure better torque management and longer transmission life without sacrificing comfort or efficiency.
FAQ
Q: What is the benefit of a Stage 1 transmission upgrade?
A: Stage 1 improves reliability, clutch capacity, and shift quality over stock while maintaining near-OEM drivability.
Q: Does this transmission support PTO operation?
A: Yes, this unit is equipped with PTO (Power Take-Off) capability, making it ideal for work trucks and auxiliary equipment use.
Q: Is this suitable for towing?
A: Absolutely. This transmission is designed to handle towing demands better than stock with improved durability and heat management.
Q: What power levels can this support?
A: This Stage 1 transmission is ideal for stock to mildly upgraded trucks, typically supporting modest horsepower increases safely.
Fitment
- 2004.5 Chevrolet Silverado 2500HD/3500HD 6.6L LLY Duramax (2WD)
- 2005 Chevrolet Silverado 2500HD/3500HD 6.6L LLY Duramax (2WD)
- 2004.5 GMC Sierra 2500HD/3500HD 6.6L LLY Duramax (2WD)
- 2005 GMC Sierra 2500HD/3500HD 6.6L LLY Duramax (2WD)
Key Features
- Stage 1 upgraded Allison LCT1000 transmission
- Improved clutch capacity and durability
- Enhanced shift quality and torque management
- PTO (Power Take-Off) capability included
- Ideal for towing and work applications
- Designed for stock to mildly modified trucks
- Direct replacement with improved performance
Specifications for ATS 309-813-4290
| Specification | Details |
|---|---|
| Part Number | 309-813-4290 |
| UPC | Not Available |
| GTIN | Not Available |
| Transmission Type | Allison LCT1000 Stage 1 |
| Drivetrain | 2WD |
| Engine Compatibility | 6.6L Duramax LLY |
| Model Years | 2004.5 - 2005 |
| PTO Compatibility | Yes |
| Horsepower Rating | Stock to Mild Performance |
| Torque Capacity | Improved Over Stock |
| Shipping Weight | Approximately 350-400 lbs |
| Shipping Method | Freight (Core Charge Applies) |
| Warranty | 5 Year / 500,000 Mile Limited Warranty |
| California Prop 65 | WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |
