Product Description
The ATS 309-855-4332 Stage 5 Allison LCT1000 Transmission Package is a top-tier performance upgrade engineered for 2007.5-2010 GM Silverado and Sierra trucks equipped with the 6.6L LMM Duramax diesel engine. Designed for extreme towing, high-horsepower applications, and heavy-duty use, this package delivers maximum strength, durability, and performance beyond factory limitations.
This complete ATS Stage 5 package includes a fully built Allison LCT1000 transmission, ATS Five Star torque converter, and ATS deep transmission pan. ATS incorporates billet internal components, upgraded clutch packs, and proprietary modifications to dramatically increase torque capacity and eliminate common Allison transmission weaknesses.
The included Five Star torque converter enhances torque multiplication and lock-up efficiency, while the deep transmission pan increases fluid capacity and cooling performance. This combination ensures consistent operation under heavy loads and extreme conditions.
Built specifically for demanding diesel applications, this Stage 5 package is ideal for high-performance builds, heavy towing, and commercial use where reliability and strength are critical.
FAQ
What is included in the ATS 309-855-4332 package?
This package includes a Stage 5 built Allison LCT1000 transmission, ATS Five Star torque converter, and ATS deep transmission pan.
What makes the Stage 5 package different?
Stage 5 is ATS’s highest performance level, featuring billet internal components and upgraded clutch capacity for maximum torque handling.
Is this transmission suitable for high horsepower trucks?
Yes. This package is specifically designed for high-performance and high-horsepower applications.
Does this transmission support PTO?
Yes. This model is built for 4WD trucks equipped with PTO functionality.
Is this a good option for towing?
Absolutely. It is built to handle extreme towing and heavy-duty workloads with improved cooling and durability.
FITMENT
2007.5-2010 Chevrolet Silverado 2500HD/3500HD 6.6L LMM Duramax Diesel 4WD with PTO
2007.5-2010 GMC Sierra 2500HD/3500HD 6.6L LMM Duramax Diesel 4WD with PTO
Equipped with Allison LCT1000 Transmission
Specifications for ATS 309-855-4332
| Specification | Details |
|---|---|
| Part Number | 309-855-4332 |
| Product Name | ATS Stage 5 Allison LCT1000 Transmission Package |
| Transmission Model | Allison LCT1000 |
| Engine Fitment | 6.6L LMM Duramax Diesel |
| Vehicle Fitment | 2007.5-2010 Silverado/Sierra 2500HD & 3500HD |
| Drive Configuration | 4WD |
| PTO Compatibility | Yes |
| Included Components | Stage 5 Built Transmission, Five Star Torque Converter, Deep Transmission Pan |
| Performance Level | Stage 5 (Maximum Performance) |
| UPC | Not Available |
| GTIN | Not Available |
| Shipping Information | Freight Shipping Required |
| Core Charge | Core Charge Applies |
| Prop 65 | WARNING: Cancer and Reproductive Harm |
