Product Description
The ATS 309-843-4248 Stage 4 Allison LCT1000 Transmission Package is a high-performance upgrade designed for 2001–2002 6.6L LB7 Duramax trucks equipped with a 2WD drivetrain and PTO capability. Built to significantly outperform the factory Allison transmission, this package delivers increased strength, improved shift quality, and enhanced durability for both work and performance applications.
Engineered with upgraded clutch packs, reinforced internal components, and ATS’s proven transmission technology, the Stage 4 package is ideal for trucks running increased horsepower while still maintaining reliability for towing and daily driving. The inclusion of a PTO (Power Take-Off) provision makes this unit perfect for commercial and utility applications requiring auxiliary equipment operation.
Paired with the ATS Five Star torque converter, this transmission provides efficient power transfer, reduced slippage, and improved throttle response under load. Whether you're towing heavy loads or running higher power levels, this transmission is built to handle the demand.
FAQ
Q: What is the difference between Stage 4 and Stage 5?
A: Stage 4 is designed for high-performance and heavy towing applications, while Stage 5 includes additional billet components for extreme horsepower builds.
Q: What does PTO mean?
A: PTO (Power Take-Off) allows the transmission to power external equipment such as hydraulic pumps, commonly used in work trucks.
Q: Is this transmission good for towing?
A: Yes, it is built for heavy-duty towing with improved clutch capacity and heat management.
Q: Does this include a torque converter?
A: Yes, the ATS Five Star torque converter is included for improved performance and durability.
Fitment
- 2001 Chevrolet Silverado 2500HD/3500HD 6.6L LB7 Duramax (2WD)
- 2001 GMC Sierra 2500HD/3500HD 6.6L LB7 Duramax (2WD)
- 2002 Chevrolet Silverado 2500HD/3500HD 6.6L LB7 Duramax (2WD)
- 2002 GMC Sierra 2500HD/3500HD 6.6L LB7 Duramax (2WD)
Key Features
- Designed for high-performance and heavy towing applications
- Upgraded clutch packs for increased holding capacity
- Reinforced internal components for durability
- PTO (Power Take-Off) compatible transmission
- ATS Five Star torque converter included
- Improved shift quality and reduced slippage
- Ideal for work trucks and performance builds
Specifications for ATS 309-843-4248
| Specification | Details |
|---|---|
| Part Number | 309-843-4248 |
| UPC | Not Available |
| GTIN | Not Available |
| Transmission Type | Allison LCT1000 Stage 4 |
| Drivetrain | 2WD |
| PTO Compatible | Yes |
| Engine Compatibility | 6.6L Duramax LB7 |
| Model Years | 2001 - 2002 |
| Performance Rating | High Performance / Heavy Duty |
| 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 |
