Product Description
The ATS 309-833-4362 Stage 3 Allison LCT1000 Transmission Package is a premium performance upgrade designed for 2011–2016 6.6L LML Duramax trucks equipped with a 2WD drivetrain and PTO functionality. Built to handle increased power levels while maintaining reliability, this transmission package is ideal for towing, work trucks, and moderate performance applications.
Featuring upgraded clutch packs, improved internal components, and ATS’s precision engineering, the Stage 3 package eliminates common factory transmission weaknesses. The included Five Star torque converter enhances torque multiplication and efficiency, while maintaining smooth drivability under load.
This transmission is designed for trucks that demand more than stock without stepping into extreme race-level builds, offering a perfect balance of strength, durability, and everyday usability.
FAQ
Q: What is the difference between Stage 3 and higher stages?
A: Stage 3 is designed for moderate power increases and towing, while higher stages (Stage 4 & 5) are built for extreme horsepower and racing applications.
Q: Does this transmission support PTO operation?
A: Yes, this unit is specifically built with PTO (Power Take-Off) compatibility for work truck applications.
Q: Is this good for towing heavy loads?
A: Absolutely. This transmission is designed to improve durability and performance under towing conditions.
Q: Does it include a torque converter?
A: Yes, it includes the ATS Five Star torque converter for improved efficiency and power transfer.
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 towing and moderate performance builds
- Enhanced clutch capacity for increased durability
- ATS Five Star torque converter included
- PTO (Power Take-Off) compatible
- Improved internal components over stock
- Smooth and reliable shifting under load
- Ideal balance between performance and daily drivability
Specifications for ATS 309-833-4362
| Specification | Details |
|---|---|
| Part Number | 309-833-4362 |
| UPC | Not Available |
| GTIN | Not Available |
| Transmission Type | Allison LCT1000 Stage 3 |
| Drivetrain | 2WD |
| Engine Compatibility | 6.6L Duramax LML |
| Model Years | 2011 - 2016 |
| PTO Compatibility | Yes |
| Horsepower Rating | Up to ~650 HP |
| Torque Capacity | Significantly 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 |
