Product Description
The ATS 309-824-4332 Stage 2 Allison LCT1000 Transmission Package is a performance-built upgrade for 2007.5–2010 6.6L LMM Duramax trucks equipped with 4WD. Designed to handle increased power levels while maintaining daily drivability, this package strengthens the factory Allison transmission with upgraded internals and improved clutch capacity.
Ideal for towing, light performance builds, and work trucks, the Stage 2 package eliminates common factory weaknesses while delivering smoother, more consistent shifts and improved durability. The included ATS Five Star torque converter enhances torque multiplication and efficiency, making it a reliable upgrade for trucks running mild tuning or bolt-on modifications.
This transmission is engineered to handle increased horsepower and torque over stock while maintaining excellent reliability for everyday use and heavy-duty applications.
FAQ
Q: What power levels can the ATS Stage 2 handle?
A: The Stage 2 is designed for mild to moderate performance builds, typically supporting trucks with basic tuning and bolt-on upgrades.
Q: Is this transmission good for towing?
A: Yes, it is an excellent choice for towing, offering improved clutch holding capacity and better heat management over stock.
Q: Does this package include a torque converter?
A: Yes, it includes the ATS Five Star torque converter for improved performance and efficiency.
Q: Is this a good daily driving transmission?
A: Absolutely. The Stage 2 is designed to maintain smooth drivability while adding strength and reliability.
Fitment
- 2007.5 Chevrolet Silverado 2500HD/3500HD 6.6L LMM Duramax (4WD)
- 2008 Chevrolet Silverado 2500HD/3500HD 6.6L LMM Duramax (4WD)
- 2009 Chevrolet Silverado 2500HD/3500HD 6.6L LMM Duramax (4WD)
- 2010 Chevrolet Silverado 2500HD/3500HD 6.6L LMM Duramax (4WD)
- 2007.5 GMC Sierra 2500HD/3500HD 6.6L LMM Duramax (4WD)
- 2008 GMC Sierra 2500HD/3500HD 6.6L LMM Duramax (4WD)
- 2009 GMC Sierra 2500HD/3500HD 6.6L LMM Duramax (4WD)
- 2010 GMC Sierra 2500HD/3500HD 6.6L LMM Duramax (4WD)
Key Features
- Upgraded clutch packs for increased holding capacity
- ATS Five Star torque converter included
- Improved shift quality and durability
- Designed for towing and daily driving applications
- Handles increased power over stock transmission
- Built for reliability in work and performance environments
Specifications for ATS 309-824-4332
| Specification | Details |
|---|---|
| Part Number | 309-824-4332 |
| UPC | Not Available |
| GTIN | Not Available |
| Transmission Type | Allison LCT1000 Stage 2 |
| Drivetrain | 4WD |
| Engine Compatibility | 6.6L Duramax LMM |
| Model Years | 2007.5 - 2010 |
| Horsepower Rating | Up to ~500 HP (Estimated) |
| 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 |
