Product Description
The ATS 304-920-4248 Allison Billet Intermediate Shaft is a critical upgrade for strengthening the Allison 1000 transmission found in 2001-2019 6.6L Duramax trucks. Designed to handle increased torque and horsepower, this billet shaft replaces the factory intermediate shaft, which is a known failure point in high-performance and heavy-duty applications.
Manufactured from high-strength billet material, this intermediate shaft delivers superior durability and resistance to twisting or failure under extreme load conditions. Whether you're towing heavy loads or running a high-horsepower setup, this upgrade ensures your transmission can handle the added stress with confidence.
This component is ideal for performance builds, transmission rebuilds, or anyone looking to reinforce their Allison transmission for long-term reliability.
FAQ
Q: What does an intermediate shaft do in the Allison transmission?
A: The intermediate shaft transfers power between internal transmission components and is critical for handling torque loads.
Q: Why upgrade to a billet intermediate shaft?
A: The factory shaft can fail under high torque. A billet shaft provides significantly greater strength and durability.
Q: Is this required for high horsepower builds?
A: Yes, it is highly recommended for performance builds, towing applications, and any setup exceeding stock power levels.
Q: When should this be installed?
A: It is typically installed during a transmission build or upgrade since it requires internal access to the transmission.
Fitment
- 2001-2004 Chevrolet Silverado 2500HD/3500HD 6.6L LB7 Duramax
- 2001-2004 GMC Sierra 2500HD/3500HD 6.6L LB7 Duramax
- 2004.5-2005 Chevrolet Silverado 2500HD/3500HD 6.6L LLY Duramax
- 2004.5-2005 GMC Sierra 2500HD/3500HD 6.6L LLY Duramax
- 2006-2007 Chevrolet Silverado 2500HD/3500HD 6.6L LBZ Duramax
- 2006-2007 GMC Sierra 2500HD/3500HD 6.6L LBZ Duramax
- 2007.5-2010 Chevrolet Silverado 2500HD/3500HD 6.6L LMM Duramax
- 2007.5-2010 GMC Sierra 2500HD/3500HD 6.6L LMM Duramax
- 2011-2016 Chevrolet Silverado 2500HD/3500HD 6.6L LML Duramax
- 2011-2016 GMC Sierra 2500HD/3500HD 6.6L LML Duramax
- 2017-2019 Chevrolet Silverado 2500HD/3500HD 6.6L L5P Duramax
- 2017-2019 GMC Sierra 2500HD/3500HD 6.6L L5P Duramax
Key Features
- Billet intermediate shaft for Allison 1000 transmissions
- Significantly stronger than factory shaft
- Prevents failure under high torque loads
- Ideal for towing, racing, and performance applications
- Perfect for transmission builds and upgrades
- Precision machined for durability and reliability
Specifications for ATS 304-920-4248
| Specification | Details |
|---|---|
| Part Number | 304-920-4248 |
| UPC | Not Available |
| GTIN | Not Available |
| Product Type | Billet Intermediate Shaft |
| Transmission Compatibility | Allison 1000 |
| Engine Compatibility | 6.6L Duramax (LB7, LLY, LBZ, LMM, LML, L5P) |
| Model Years | 2001-2019 |
| Material | High-strength billet steel |
| Installation | Internal transmission installation required |
| Shipping Info | Standard Ground Shipping |
| Warranty | Limited Manufacturer Warranty |
| California Prop 65 | WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |
