Product Description
The ATS 309-822-4362 Stage 2 Allison LCT1000 Transmission Package is a premium upgrade designed for 2011–2016 6.6L LML Duramax trucks. Built to correct common factory transmission weaknesses, this package delivers improved durability, smoother shifting, and increased torque capacity for daily driving, towing, and mild performance applications.
Engineered with upgraded clutch packs, enhanced internal components, and ATS precision tuning, the Stage 2 transmission is ideal for trucks running stock to moderately increased power levels. Whether you're towing heavy loads or looking for improved drivability, this package provides the reliability and performance your Duramax demands.
Paired with the ATS Five Star torque converter, this transmission ensures efficient power transfer, reduced slippage, and better overall performance compared to the stock Allison unit.
FAQ
Q: What is the difference between Stage 2 and higher ATS stages?
A: Stage 2 is designed for stock to mildly modified trucks, offering improved durability and performance without the extreme upgrades found in higher stages.
Q: Is this transmission suitable for towing?
A: Yes, it is an excellent choice for towing applications, providing better clutch holding capacity and improved heat management.
Q: Does this include a torque converter?
A: Yes, it includes the ATS Five Star torque converter for improved efficiency and power transfer.
Q: How much power can this transmission handle?
A: This Stage 2 package is ideal for trucks up to approximately 500–600 horsepower.
Fitment
- 2011 Chevrolet Silverado 2500HD/3500HD 6.6L LML Duramax (2WD)
- 2012 Chevrolet Silverado 2500HD/3500HD 6.6L LML Duramax (2WD)
- 2013 Chevrolet Silverado 2500HD/3500HD 6.6L LML Duramax (2WD)
- 2014 Chevrolet Silverado 2500HD/3500HD 6.6L LML Duramax (2WD)
- 2015 Chevrolet Silverado 2500HD/3500HD 6.6L LML Duramax (2WD)
- 2016 Chevrolet Silverado 2500HD/3500HD 6.6L LML Duramax (2WD)
- 2011 GMC Sierra 2500HD/3500HD 6.6L LML Duramax (2WD)
- 2012 GMC Sierra 2500HD/3500HD 6.6L LML Duramax (2WD)
- 2013 GMC Sierra 2500HD/3500HD 6.6L LML Duramax (2WD)
- 2014 GMC Sierra 2500HD/3500HD 6.6L LML Duramax (2WD)
- 2015 GMC Sierra 2500HD/3500HD 6.6L LML Duramax (2WD)
- 2016 GMC Sierra 2500HD/3500HD 6.6L LML Duramax (2WD)
Key Features
- Designed for stock to moderately modified trucks
- Handles up to approximately 500–600 HP
- Upgraded clutch packs for increased holding capacity
- Improved internal components for durability
- ATS Five Star torque converter included
- Smoother, more controlled shifting
- Ideal for towing and daily driving
- Improved transmission longevity over stock
Specifications for ATS 309-822-4362
| Specification | Details |
|---|---|
| Part Number | 309-822-4362 |
| UPC | Not Available |
| GTIN | Not Available |
| Transmission Type | Allison LCT1000 Stage 2 |
| Drivetrain | 2WD |
| Engine Compatibility | 6.6L Duramax LML |
| Model Years | 2011 - 2016 |
| Horsepower Rating | Up to 600 HP |
| 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 |
