Product Description
The ATS 309-824-4362 Stage 2 Allison LCT1000 Transmission Package is a performance-driven upgrade for 2011–2016 6.6L LML Duramax trucks equipped with 4WD. Designed to improve reliability, shift quality, and torque capacity, this transmission package addresses common factory weaknesses while maintaining excellent daily drivability.
Perfect for trucks with mild to moderate performance upgrades, the Stage 2 transmission delivers increased clutch holding capacity, improved hydraulic control, and enhanced durability under towing and workload stress. ATS integrates upgraded internal components and precision calibration to ensure smoother shifts and longer transmission life.
This package is ideal for work trucks, towing applications, and lightly modified Duramax builds looking for dependable performance without going to a full race-level transmission.
FAQ
Q: What power level is the ATS Stage 2 transmission designed for?
A: Stage 2 is ideal for stock to moderately tuned trucks, typically supporting mild horsepower increases and towing demands.
Q: Is this transmission good for towing?
A: Yes, it is specifically designed to improve towing performance with better clutch holding power and reduced slip.
Q: Does this transmission include a torque converter?
A: Yes, it includes an upgraded ATS torque converter designed for improved efficiency and durability.
Q: What makes Stage 2 different from stock?
A: It includes upgraded clutch packs, improved valve body calibration, and stronger internal components for better reliability and performance.
Fitment
- 2011 Chevrolet Silverado 2500HD/3500HD 6.6L LML Duramax (4WD)
- 2012 Chevrolet Silverado 2500HD/3500HD 6.6L LML Duramax (4WD)
- 2013 Chevrolet Silverado 2500HD/3500HD 6.6L LML Duramax (4WD)
- 2014 Chevrolet Silverado 2500HD/3500HD 6.6L LML Duramax (4WD)
- 2015 Chevrolet Silverado 2500HD/3500HD 6.6L LML Duramax (4WD)
- 2016 Chevrolet Silverado 2500HD/3500HD 6.6L LML Duramax (4WD)
- 2011 GMC Sierra 2500HD/3500HD 6.6L LML Duramax (4WD)
- 2012 GMC Sierra 2500HD/3500HD 6.6L LML Duramax (4WD)
- 2013 GMC Sierra 2500HD/3500HD 6.6L LML Duramax (4WD)
- 2014 GMC Sierra 2500HD/3500HD 6.6L LML Duramax (4WD)
- 2015 GMC Sierra 2500HD/3500HD 6.6L LML Duramax (4WD)
- 2016 GMC Sierra 2500HD/3500HD 6.6L LML Duramax (4WD)
Key Features
- Designed for stock to moderately modified trucks
- Increased clutch capacity for improved durability
- Enhanced valve body calibration for better shift quality
- Upgraded ATS torque converter included
- Improved towing performance and reliability
- Direct replacement transmission package
- Built for daily driving, towing, and light performance use
Specifications for ATS 309-824-4362
| Specification | Details |
|---|---|
| Part Number | 309-824-4362 |
| UPC | Not Available |
| GTIN | Not Available |
| Transmission Type | Allison LCT1000 Stage 2 |
| Drivetrain | 4WD |
| Engine Compatibility | 6.6L Duramax LML |
| Model Years | 2011 - 2016 |
| Horsepower Rating | Up to ~600 HP (Recommended Range) |
| 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 |
