Product Description
The ATS 309-845-4248 Stage 4 Allison LCT1000 Transmission Package is a high-performance upgrade designed for 2001–2002 6.6L LB7 Duramax trucks equipped with 4WD and PTO functionality. Built to handle increased power demands while maintaining reliability, this transmission package strengthens the factory Allison platform with upgraded internal components and precision tuning.
Ideal for towing, work trucks, and performance applications, the Stage 4 package delivers increased torque capacity, improved clutch holding power, and enhanced shift quality. The included ATS Five Star torque converter and deep transmission pan provide superior cooling and efficiency under heavy load conditions.
This complete transmission solution is engineered to handle significantly more horsepower than stock while maintaining drivability and long-term durability in demanding environments.
FAQ
Q: What is the difference between Stage 4 and Stage 5 transmissions?
A: Stage 4 transmissions are built for high-performance towing and moderate power increases, while Stage 5 includes additional billet components for extreme horsepower applications.
Q: Does this transmission support PTO operation?
A: Yes, this package is specifically designed for vehicles requiring PTO functionality.
Q: Is this transmission good for heavy towing?
A: Absolutely. It is engineered for towing and work applications with improved clutch capacity and cooling.
Q: Does it include a torque converter?
A: Yes, it includes the ATS Five Star torque converter for optimal power transfer and efficiency.
Fitment
- 2001 Chevrolet Silverado 2500HD/3500HD 6.6L LB7 Duramax (4WD w/ PTO)
- 2001 GMC Sierra 2500HD/3500HD 6.6L LB7 Duramax (4WD w/ PTO)
- 2002 Chevrolet Silverado 2500HD/3500HD 6.6L LB7 Duramax (4WD w/ PTO)
- 2002 GMC Sierra 2500HD/3500HD 6.6L LB7 Duramax (4WD w/ PTO)
Key Features
- Designed for high-performance towing and work applications
- Increased torque capacity over stock
- Upgraded clutch packs and internal components
- ATS Five Star torque converter included
- Deep transmission pan for improved cooling
- Maintains PTO compatibility
- Enhanced shift quality and durability
- Built for demanding diesel performance applications
Specifications for ATS 309-845-4248
| Specification | Details |
|---|---|
| Part Number | 309-845-4248 |
| UPC | Not Available |
| GTIN | Not Available |
| Transmission Type | Allison LCT1000 Stage 4 |
| Drivetrain | 4WD |
| PTO Compatibility | Yes |
| Engine Compatibility | 6.6L Duramax LB7 |
| Model Years | 2001 - 2002 |
| Horsepower Rating | Up to 750 HP (Estimated) |
| 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 |
