Product Description
The ATS 309-814-4248 Stage 1 Allison LCT1000 Transmission Package is the perfect upgrade for 2001–2002 6.6L LB7 Duramax trucks looking to improve reliability and performance over the stock transmission. Designed as a heavy-duty replacement, this 4WD transmission package strengthens key internal components while maintaining smooth factory-like drivability.
Ideal for daily drivers, towing applications, and mildly tuned trucks, the Stage 1 package increases torque capacity and reduces common failure points found in the factory Allison transmission. With upgraded clutch materials and precision assembly, this transmission delivers consistent performance and long-term durability.
This complete package includes an upgraded torque converter and is engineered to handle increased power levels while maintaining excellent shift quality and reliability.
FAQ
Q: Who is the Stage 1 transmission designed for?
A: It is ideal for stock to mildly tuned trucks used for daily driving or towing.
Q: Does this improve towing performance?
A: Yes, it provides increased torque capacity and improved durability, making it more reliable under load.
Q: Is a torque converter included?
A: Yes, this package includes an upgraded ATS torque converter.
Q: How does it compare to stock?
A: It offers stronger internals, improved clutch holding capacity, and better longevity than the factory transmission.
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 stock to mildly modified trucks
- Increased torque capacity over factory transmission
- Upgraded clutch packs and internal components
- Improved reliability for towing and daily use
- Includes upgraded ATS torque converter
- Maintains smooth, factory-like shifting
- Built for long service life and durability
Specifications for ATS 309-814-4248
| Specification | Details |
|---|---|
| Part Number | 309-814-4248 |
| UPC | Not Available |
| GTIN | Not Available |
| Transmission Type | Allison LCT1000 Stage 1 |
| Drivetrain | 4WD |
| Engine Compatibility | 6.6L Duramax LB7 |
| Model Years | 2001 - 2002 |
| Horsepower Rating | Up to 450 HP (Estimated) |
| Torque Capacity | Improved 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 |
