Product Description
The ATS 309-844-4248 Stage 4 Allison LCT1000 Transmission Package is a high-performance upgrade engineered for 2001–2002 6.6L LB7 Duramax trucks equipped with 4WD. Designed to significantly outperform the factory transmission, this package delivers increased holding power, improved shift quality, and long-term durability for both towing and performance applications.
Built with upgraded clutch packs, enhanced internal components, and ATS’s proven engineering, the Stage 4 transmission is ideal for trucks running increased horsepower while maintaining reliability on the street or under load. The included ATS Five Star torque converter ensures efficient power transfer and improved drivability.
This transmission package is capable of handling substantially more torque than stock, making it a perfect solution for daily drivers, work trucks, and performance builds pushing beyond factory limits.
FAQ
Q: What is the difference between Stage 4 and Stage 5 transmissions?
A: Stage 4 is designed for high-performance street and towing applications, while Stage 5 includes additional billet components for extreme horsepower builds.
Q: Is this transmission suitable for towing?
A: Yes, it is built to handle heavy towing with improved clutch capacity and better heat management.
Q: Does this include a torque converter?
A: Yes, the ATS Five Star torque converter is included for optimal efficiency and power delivery.
Q: What power levels can this transmission support?
A: Stage 4 transmissions are typically suited for high horsepower builds up to approximately 750–800HP depending on setup.
Fitment
- 2001 Chevrolet Silverado 2500HD/3500HD 6.6L LB7 Duramax (4WD)
- 2001 GMC Sierra 2500HD/3500HD 6.6L LB7 Duramax (4WD)
- 2002 Chevrolet Silverado 2500HD/3500HD 6.6L LB7 Duramax (4WD)
- 2002 GMC Sierra 2500HD/3500HD 6.6L LB7 Duramax (4WD)
Key Features
- Designed for high-performance and towing applications
- Upgraded clutch packs for increased holding capacity
- Improved shift quality and transmission longevity
- ATS Five Star torque converter included
- Enhanced internal components for durability
- Built for 4WD Duramax applications
- Ideal for trucks with performance tuning and upgrades
Specifications for ATS 309-844-4248
| Specification | Details |
|---|---|
| Part Number | 309-844-4248 |
| UPC | Not Available |
| GTIN | Not Available |
| Transmission Type | Allison LCT1000 Stage 4 |
| Drivetrain | 4WD |
| Engine Compatibility | 6.6L Duramax LB7 |
| Model Years | 2001 - 2002 |
| Horsepower Rating | Up to 750–800 HP |
| Torque Capacity | Significantly 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 |
