Product Description
The ATS 309-842-4248 Stage 4 Allison LCT1000 Transmission Package is a high-performance upgrade designed specifically for 2001–2002 6.6L LB7 Duramax trucks. Built to significantly outperform the factory Allison transmission, this 2WD package is engineered for increased durability, improved shift quality, and higher torque capacity.
Ideal for towing, daily driving, and moderate to high-performance applications, the Stage 4 transmission incorporates upgraded clutch packs, billet components, and precision calibration to handle substantially more power than stock. Paired with the ATS Five Star torque converter and deep transmission pan, this package ensures efficient power transfer and improved cooling under load.
This transmission is a complete, performance-built solution capable of handling demanding workloads while maintaining excellent drivability and reliability.
FAQ
Q: How does the Stage 4 transmission compare to stock?
A: The Stage 4 includes upgraded internals, improved clutch capacity, and stronger components, allowing it to handle significantly more torque and prevent common factory failures.
Q: Is this transmission suitable for towing?
A: Yes, it is designed for heavy towing and daily driving with improved durability and heat management.
Q: Does this package include a torque converter?
A: Yes, it includes the ATS Five Star torque converter for better efficiency and power delivery.
Q: What power level is this transmission rated for?
A: The Stage 4 transmission is typically rated for up to approximately 750 horsepower depending on supporting modifications.
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
- Rated up to approximately 750HP
- Significantly increased torque capacity over stock
- Upgraded clutch packs and internal components
- Billet input shaft for added strength
- ATS Five Star torque converter included
- Deep transmission pan for improved cooling
- Enhanced shift performance and durability
- Ideal for towing, daily driving, and performance use
Specifications for ATS 309-842-4248
| Specification | Details |
|---|---|
| Part Number | 309-842-4248 |
| UPC | Not Available |
| GTIN | Not Available |
| Transmission Type | Allison LCT1000 Stage 4 |
| Drivetrain | 2WD |
| Engine Compatibility | 6.6L Duramax LB7 |
| Model Years | 2001 - 2002 |
| Horsepower Rating | Up to 750 HP |
| 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 |
