Product Description
The ATS 309-835-4272 Stage 3 Allison LCT1000 Transmission Package is a high-performance upgrade designed for 2003–early 2004 6.6L LB7 Duramax trucks equipped with 4WD and PTO functionality. Built to significantly outperform the stock Allison transmission, this package delivers increased strength, improved shift quality, and enhanced durability for towing, work, and performance applications.
This Stage 3 transmission is ideal for trucks running mild to moderate performance upgrades while still requiring dependable daily driving and heavy-duty capability. Featuring upgraded clutch packs, improved hydraulic control, and the proven ATS Five Star torque converter, this package ensures efficient power transfer and long-term reliability.
With added PTO compatibility, this transmission is perfect for work trucks that rely on auxiliary equipment while still benefiting from performance enhancements and increased torque capacity.
FAQ
Q: What power level is the ATS Stage 3 transmission designed for?
A: The Stage 3 is built for moderately upgraded trucks and can handle significantly more power than stock, making it ideal for towing and daily driving with added performance.
Q: Does this transmission support PTO functionality?
A: Yes, this package is specifically designed for 4WD trucks requiring PTO capability for work-related applications.
Q: Is a torque converter included?
A: Yes, the ATS Five Star torque converter is included for improved torque multiplication and efficiency.
Q: Is this good for towing?
A: Absolutely. This transmission is built to handle heavy towing with improved durability and cooling over stock units.
Fitment
- 2003 Chevrolet Silverado 2500HD/3500HD 6.6L LB7 Duramax (4WD)
- 2003 GMC Sierra 2500HD/3500HD 6.6L LB7 Duramax (4WD)
- Early 2004 Chevrolet Silverado 2500HD/3500HD 6.6L LB7 Duramax (4WD)
- Early 2004 GMC Sierra 2500HD/3500HD 6.6L LB7 Duramax (4WD)
Key Features
- Designed for mild to moderate performance builds
- Increased torque capacity over stock
- Upgraded clutch packs and internal components
- ATS Five Star torque converter included
- PTO (Power Take-Off) compatible
- Improved shift quality and durability
- Ideal for towing, work trucks, and daily driving
Specifications for ATS 309-835-4272
| Specification | Details |
|---|---|
| Part Number | 309-835-4272 |
| UPC | Not Available |
| GTIN | Not Available |
| Transmission Type | Allison LCT1000 Stage 3 |
| Drivetrain | 4WD |
| PTO Compatibility | Yes |
| Engine Compatibility | 6.6L Duramax LB7 |
| Model Years | 2003 - Early 2004 |
| Performance Level | Stage 3 |
| 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 |
