Product Description
The ATS 309-823-4308 Stage 2 Allison LCT1000 Transmission Package is a reliable performance upgrade for 2006–2007 6.6L LLY, LBZ, and LMM Duramax trucks equipped with a 2WD drivetrain and PTO capability. Designed to improve durability and eliminate common factory transmission weaknesses, this package is ideal for towing, work trucks, and mild performance builds.
This Stage 2 transmission features upgraded clutch packs, enhanced valve body calibration, and improved internal components to increase torque capacity while maintaining smooth drivability. The included ATS Five Star torque converter ensures efficient power transfer and improved throttle response, making it perfect for daily driving and heavy-duty applications.
With PTO (Power Take-Off) compatibility, this transmission is an excellent solution for commercial and utility applications requiring auxiliary equipment operation while delivering the reliability ATS is known for.
FAQ
Q: What is the difference between Stage 2 and higher ATS transmissions?
A: Stage 2 is designed for stock to mildly upgraded trucks, focusing on improved durability and towing performance without the extreme billet components found in higher stages.
Q: Does this transmission support PTO functionality?
A: Yes, this unit is specifically designed with PTO compatibility for work trucks and commercial applications.
Q: Is a torque converter included?
A: Yes, it includes the ATS Five Star torque converter for improved efficiency and performance.
Q: What power level can this handle?
A: This transmission is best suited for stock to moderately modified trucks, typically supporting up to approximately 500–600 horsepower.
Fitment
- 2006 Chevrolet Silverado 2500HD/3500HD 6.6L LLY Duramax (2WD)
- 2006-2007 Chevrolet Silverado 2500HD/3500HD 6.6L LBZ Duramax (2WD)
- 2007 Chevrolet Silverado 2500HD/3500HD 6.6L LMM Duramax (2WD Classic Body)
- 2006 GMC Sierra 2500HD/3500HD 6.6L LLY Duramax (2WD)
- 2006-2007 GMC Sierra 2500HD/3500HD 6.6L LBZ Duramax (2WD)
- 2007 GMC Sierra 2500HD/3500HD 6.6L LMM Duramax (2WD Classic Body)
Key Features
- Designed for stock to mild performance builds
- Improved clutch packs for increased holding capacity
- Enhanced valve body calibration for better shift quality
- ATS Five Star torque converter included
- PTO (Power Take-Off) compatible
- Improved reliability for towing and work applications
- Ideal for daily driving and commercial use
Specifications for ATS 309-823-4308
| Specification | Details |
|---|---|
| Part Number | 309-823-4308 |
| UPC | Not Available |
| GTIN | Not Available |
| Transmission Type | Allison LCT1000 Stage 2 |
| Drivetrain | 2WD |
| PTO Compatibility | Yes |
| Engine Compatibility | 6.6L Duramax LLY / LBZ / LMM |
| Model Years | 2006 - 2007 |
| Horsepower Rating | Up to 600 HP |
| Use Case | Towing, Work Trucks, Daily Driving |
| 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 |
