Product Description
Eliminate Flexplate Failure in High-Power Duramax Builds
The ATS 305-900-4368 Billet Flexplate is engineered to handle the extreme torque demands of 2011–2016 6.6L Duramax LML engines paired with the Allison LCT1000 transmission. Designed as a direct replacement upgrade, this billet flexplate eliminates the risk of cracking or failure common with factory stamped units.
Machined from 1045 billet steel and SFI certified, this flexplate is built to withstand high horsepower, towing stress, and aggressive driving conditions. The one-piece, precision TIG-welded construction removes the weaknesses associated with multi-piece factory designs, ensuring long-term durability and reliability.
Whether you're pushing serious power or simply want bulletproof reliability, this ATS billet flexplate is a must-have upgrade for any Duramax Allison build.
Key Features:
- Machined from 1045 billet steel for superior strength
- SFI certified for high-performance and racing applications
- One-piece design eliminates factory failure points
- Hand TIG-welded for precision and durability
- Zinc coated for corrosion resistance
- Handles high horsepower and extreme torque loads
- Direct replacement for factory flexplate and flywheel
FAQ
Why upgrade to a billet flexplate?
Factory flexplates can crack under high torque. A billet flexplate provides significantly greater strength and reliability.
Is this required for high horsepower builds?
Yes, upgraded flexplates are strongly recommended for tuned, towing, or high-performance Duramax applications.
Is this SFI approved?
Yes, this flexplate meets SFI certification standards for high-performance and racing applications.
Will this fit stock trucks?
Yes, it is a direct-fit upgrade for stock and modified Allison LCT1000 transmissions.
Fitment:
- 2011–2016 Chevrolet Silverado 2500HD / 3500HD
- 2011–2016 GMC Sierra 2500HD / 3500HD
- 6.6L Duramax Diesel (LML)
- Allison LCT1000 Automatic Transmission
Note: Always verify fitment before installation.
Specifications for ATS 305-900-4368
| ATS 305-900-4368 Product Specifications | |
|---|---|
| Part Number | 305-900-4368 |
| Brand | ATS Diesel Performance |
| Product Type | Billet Flexplate |
| Material | 1045 Billet Steel |
| Certification | SFI Approved |
| Transmission Compatibility | Allison LCT1000 |
| Engine Compatibility | 6.6L Duramax (LML) |
| Vehicle Fitment | 2011–2016 Silverado / Sierra 2500HD & 3500HD |
| UPC | N/A |
| GTIN | N/A |
| Shipping Weight | Approx. 12 lbs |
| Shipping Dimensions | Approx. 14" x 14" x 4" |
| Core Charge | DOES APPLY |
| California Prop 65 | WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |
