ATS 305-900-4308 BILLET FLEXPLATE ALLISON LCT1000, 2006-2010 LBZ/LMM DURAMAX

Product Description

Extreme Strength Billet Flexplate for High Power Duramax Builds

The ATS 305-900-4308 Billet Flexplate is engineered to handle the extreme stress of high-horsepower 6.6L Duramax LBZ and LMM engines paired with the Allison LCT1000 transmission. Designed as a one-piece replacement for the factory flexplate and flywheel, this upgrade eliminates common failure points and delivers unmatched durability.

Constructed from 1045 billet steel and precision TIG-welded, this flexplate is built to withstand the increased torque and shock loads from towing, tuning, and performance applications. The one-piece design removes the risk of hardware loosening or failure, making it a critical upgrade for reliability. 

With SFI certification, this flexplate meets strict performance and safety standards, making it suitable for both street and competition use. 

Whether you're building a high-performance Duramax or upgrading for heavy-duty towing, this ATS billet flexplate ensures consistent power transfer and long-term reliability.

Key Features:

• 1045 billet steel construction for superior strength
• SFI certified for high-performance and racing applications
• One-piece flexplate/flywheel design eliminates hardware failure
• Hand TIG-welded for precision and durability
• Zinc-coated for corrosion resistance and longevity
• Handles high torque loads from tuned and high-horsepower builds
• Improves power transfer and reduces flexplate failure risk

FAQ

Why upgrade to a billet flexplate?
Factory flexplates can crack or fail under high torque. A billet flexplate provides significantly greater strength and reliability.

Is this necessary for tuned or high horsepower trucks?
Yes, increased torque and load put extreme stress on the flexplate, making this upgrade highly recommended.

What does SFI certification mean?
It means the flexplate meets strict safety and performance standards required for high-performance and racing applications.

Will this fit stock Allison transmissions?
Yes, it is a direct-fit upgrade for Allison LCT1000 transmissions in compatible Duramax trucks.

Fitment:

• 2006–2010 Chevrolet Silverado 2500HD / 3500HD
• 2006–2010 GMC Sierra 2500HD / 3500HD
• 6.6L Duramax Diesel (LBZ / LMM)
• Allison LCT1000 Automatic Transmission

Note: Always verify fitment based on your specific vehicle configuration.

Specifications for ATS 305-900-4308