Product Description
The ATS 309-854-4362 Stage 5 Allison LCT1000 Transmission Package is the ultimate high-performance upgrade for 2011-2016 GM Silverado and Sierra HD trucks equipped with the 6.6L LML Duramax diesel engine and 4WD drivetrain. Designed for extreme horsepower, heavy towing, and demanding applications, this Stage 5 package delivers maximum strength, reliability, and performance far beyond factory limitations.
This complete ATS transmission package includes a fully built Stage 5 Allison LCT1000 transmission, ATS Five Star torque converter, and supporting internal upgrades engineered to handle high torque loads. ATS enhances the Allison platform with billet internals, upgraded clutch packs, improved valve body calibration, and increased line pressure to eliminate slip and maximize holding power.
Built for trucks pushing serious power or operating under extreme conditions, this package is ideal for competition builds, heavy towing, and high-performance street use. The included torque converter improves torque multiplication and efficiency, while ATS engineering ensures consistent, reliable shifting under load.
FAQ
What is included in the ATS 309-854-4362 package?
This package includes a fully built ATS Stage 5 Allison LCT1000 transmission and an ATS Five Star torque converter.
What makes the Stage 5 transmission different?
Stage 5 transmissions feature extensive internal upgrades including billet components, upgraded clutches, and increased line pressure to handle extreme horsepower and torque.
Is this transmission suitable for high horsepower builds?
Yes. This package is specifically designed for high-performance and competition-level trucks producing significant power increases.
Is this a good option for towing?
Absolutely. It is built to handle heavy towing loads while maintaining reliability and consistent performance.
Will this fit my truck?
This transmission is designed for 2011-2016 GM HD trucks with the 6.6L LML Duramax engine and 4WD configuration.
FITMENT
2011-2016 Chevy Silverado 2500HD 6.6L LML Duramax Diesel 4WD
2011-2016 Chevy Silverado 3500HD 6.6L LML Duramax Diesel 4WD
2011-2016 GMC Sierra 2500HD 6.6L LML Duramax Diesel 4WD
2011-2016 GMC Sierra 3500HD 6.6L LML Duramax Diesel 4WD
Specifications for ATS 309-854-4362
| Specification | Details |
|---|---|
| Part Number | 309-854-4362 |
| Product Name | ATS Stage 5 Allison LCT1000 Transmission Package |
| Transmission Model | Allison LCT1000 Automatic |
| Engine Fitment | 6.6L LML Duramax Diesel |
| Vehicle Fitment | 2011-2016 Chevy Silverado / GMC Sierra 2500HD & 3500HD |
| Drive Configuration | 4WD |
| Included Components | Stage 5 Built Transmission, Five Star Torque Converter |
| Performance Level | Stage 5 (Extreme Duty / High Horsepower) |
| Material | Billet Internal Components with Upgraded Clutch Packs |
| Application Notes | Designed for high horsepower, towing, and competition use |
| UPC | Not Available |
| GTIN | Not Available |
| Shipping Information | Freight Shipping Required |
| Core Charge | Core Charge Applies |
| Prop 65 | WARNING: Cancer and Reproductive Harm |
