Product Description
The ATS 309-815-4332 Stage 1 Allison LCT1000 Transmission Package is a reliable, heavy-duty upgrade designed for 2007.5–2010 6.6L LMM Duramax trucks equipped with 4WD and PTO. Built as a stronger-than-stock replacement, this transmission package is ideal for work trucks, towing applications, and daily drivers needing improved durability without stepping into extreme performance builds.
ATS enhances the factory Allison transmission by addressing common failure points while maintaining smooth, factory-like drivability. This Stage 1 package increases clutch holding capacity, improves shift quality, and ensures dependable performance under load. It’s the perfect solution for trucks that tow, haul, or operate PTO-driven equipment.
With upgraded internals and precision assembly, this transmission provides increased reliability and longevity while maintaining excellent street manners.
FAQ
Q: What is the purpose of a Stage 1 transmission?
A: Stage 1 is designed as a reinforced stock replacement with improved durability and reliability for towing and daily driving.
Q: Does this transmission support PTO functionality?
A: Yes, this unit is specifically built for vehicles equipped with PTO (Power Take-Off).
Q: Is this good for towing?
A: Absolutely. This transmission is ideal for towing and work applications, offering improved clutch holding and reduced slippage.
Q: Does it include a torque converter?
A: Yes, it includes an upgraded ATS torque converter designed for improved efficiency and durability.
Fitment
- 2007.5 Chevrolet Silverado 2500HD/3500HD 6.6L LMM Duramax (4WD w/ PTO)
- 2008 Chevrolet Silverado 2500HD/3500HD 6.6L LMM Duramax (4WD w/ PTO)
- 2009 Chevrolet Silverado 2500HD/3500HD 6.6L LMM Duramax (4WD w/ PTO)
- 2010 Chevrolet Silverado 2500HD/3500HD 6.6L LMM Duramax (4WD w/ PTO)
- 2007.5 GMC Sierra 2500HD/3500HD 6.6L LMM Duramax (4WD w/ PTO)
- 2008 GMC Sierra 2500HD/3500HD 6.6L LMM Duramax (4WD w/ PTO)
- 2009 GMC Sierra 2500HD/3500HD 6.6L LMM Duramax (4WD w/ PTO)
- 2010 GMC Sierra 2500HD/3500HD 6.6L LMM Duramax (4WD w/ PTO)
Key Features
- Stronger-than-stock Allison LCT1000 transmission
- Designed for towing, hauling, and work trucks
- Compatible with PTO applications
- Improved clutch capacity over stock
- Smooth, factory-like shifting
- Upgraded ATS torque converter included
- Enhanced durability and reliability
- Ideal for stock to mildly modified trucks
Specifications for ATS 309-815-4332
| Specification | Details |
|---|---|
| Part Number | 309-815-4332 |
| UPC | Not Available |
| GTIN | Not Available |
| Transmission Type | Allison LCT1000 Stage 1 |
| Drivetrain | 4WD |
| PTO Compatibility | Yes |
| Engine Compatibility | 6.6L Duramax LMM |
| Model Years | 2007.5 - 2010 |
| Horsepower Rating | Stock to Mildly Modified Builds |
| Torque Capacity | Improved 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 |