Product Description
The ATS 309-823-4272 Stage 2 Allison LCT1000 Transmission Package is a reliable performance upgrade for 2003–early 2004 6.6L LB7 Duramax trucks equipped with a 2WD drivetrain and PTO functionality. Designed for improved durability and towing performance, this transmission addresses common factory weaknesses while maintaining excellent drivability.
Built for work trucks and daily drivers that demand more strength than stock, the Stage 2 package includes upgraded clutch packs, enhanced valve body calibration, and improved torque converter performance. The added PTO capability makes this transmission ideal for utility, commercial, and service applications requiring power take-off operation.
This transmission is engineered to handle increased torque loads while delivering smoother shifts, better reliability, and extended service life compared to the factory Allison LCT1000.
FAQ
Q: What is the purpose of the PTO feature?
A: PTO (Power Take-Off) allows the transmission to power external equipment such as hydraulic pumps, making it ideal for work trucks and commercial applications.
Q: How does Stage 2 compare to stock?
A: Stage 2 offers improved clutch capacity, better shift quality, and increased durability over stock, making it ideal for towing and moderate performance upgrades.
Q: Is this transmission good for towing?
A: Yes, it is specifically designed to improve towing performance and reliability over the factory transmission.
Q: Does this include a torque converter?
A: Yes, this package includes an upgraded ATS torque converter designed for improved efficiency and torque handling.
Fitment
- 2003 Chevrolet Silverado 2500HD/3500HD 6.6L LB7 Duramax (2WD)
- 2003 GMC Sierra 2500HD/3500HD 6.6L LB7 Duramax (2WD)
- Early 2004 Chevrolet Silverado 2500HD/3500HD 6.6L LB7 Duramax (2WD)
- Early 2004 GMC Sierra 2500HD/3500HD 6.6L LB7 Duramax (2WD)
Key Features
- Stage 2 performance build for improved durability
- PTO (Power Take-Off) compatible transmission
- Upgraded clutch packs for increased holding capacity
- Improved valve body calibration for better shift quality
- Enhanced torque converter included
- Designed for towing and work truck applications
- Increased reliability over stock Allison transmission
Specifications for ATS 309-823-4272
| Specification | Details |
|---|---|
| Part Number | 309-823-4272 |
| UPC | Not Available |
| GTIN | Not Available |
| Transmission Type | Allison LCT1000 Stage 2 |
| Drivetrain | 2WD |
| PTO Compatibility | Yes |
| Engine Compatibility | 6.6L Duramax LB7 |
| Model Years | 2003 - Early 2004 |
| Performance Rating | Moderate Performance / Heavy Duty Towing |
| Shipping Weight | Approximately 375-400 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 |
