Product Description
The ATS 309-833-4272 Stage 3 Allison LCT1000 Transmission Package is a heavy-duty performance upgrade designed specifically for 2003–early 2004 6.6L LB7 Duramax trucks equipped with PTO capability. Built to handle increased power levels while maintaining reliability for work and towing applications, this 2WD transmission package strengthens critical internal components and enhances shift performance.
Ideal for trucks that require both performance and functionality, this Stage 3 package delivers improved torque capacity, smoother yet firmer shifts, and long-term durability under demanding conditions. The inclusion of PTO compatibility makes it perfect for work trucks running auxiliary equipment while still benefiting from upgraded transmission strength.
Paired with the ATS Five Star torque converter and engineered internal upgrades, this transmission is a significant step up from stock, offering increased holding power and improved efficiency for both daily driving and heavy-duty use.
FAQ
Q: What is the advantage of the Stage 3 transmission over stock?
A: The Stage 3 includes upgraded clutch capacity, improved internal components, and better torque handling, making it far more reliable than a factory Allison under load.
Q: What does PTO compatibility mean?
A: PTO (Power Take-Off) allows the transmission to power auxiliary equipment such as pumps or work truck accessories, making it ideal for commercial applications.
Q: Is this transmission suitable for towing?
A: Yes, it is specifically designed to improve towing performance with increased torque capacity and better heat management.
Q: Does this include a torque converter?
A: Yes, it includes the ATS Five Star torque converter for improved power transfer and efficiency.
Fitment
- 2003 Chevrolet Silverado 2500HD/3500HD 6.6L LB7 Duramax (2WD w/ PTO)
- 2003 GMC Sierra 2500HD/3500HD 6.6L LB7 Duramax (2WD w/ PTO)
- Early 2004 Chevrolet Silverado 2500HD/3500HD 6.6L LB7 Duramax (2WD w/ PTO)
- Early 2004 GMC Sierra 2500HD/3500HD 6.6L LB7 Duramax (2WD w/ PTO)
Key Features
- Designed for increased power and towing performance
- Upgraded clutch packs and internal components
- PTO (Power Take-Off) compatible for work truck applications
- ATS Five Star torque converter included
- Improved shift quality and durability
- Enhanced torque holding capacity over stock
- Built for daily driving, towing, and commercial use
Specifications for ATS 309-833-4272
| Specification | Details |
|---|---|
| Part Number | 309-833-4272 |
| UPC | Not Available |
| GTIN | Not Available |
| Transmission Type | Allison LCT1000 Stage 3 |
| Drivetrain | 2WD |
| PTO Compatible | Yes |
| Engine Compatibility | 6.6L Duramax LB7 |
| Model Years | 2003 - Early 2004 |
| Performance Level | Stage 3 |
| Torque Capacity | Increased over stock |
| Shipping Weight | Approximately 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 |
