ATS Diesel GM Billet Flexplate (SFI 29.3)

SKU: 305-900-4248 | UPC: 3059004248

ATS Diesel GM Billet Flexplate (SFI 29.3) 2001-2010 Chevrolet Silverado GMC Sierra HD

The ATS Diesel GM Billet Flexplate SFI 29.3 is a direct replacement for stock flexplates in 2001-2010 GM 6.6L Duramax trucks and vans.

Machined from billet steel it delivers reliable power transfer under extreme torque loads from tuned engines. SFI 29.3 certification ensures safety for racing and street use.

Key Features

• Billet Steel Construction: Machined from 1045 high-grade steel to prevent cracking and failure in high-horsepower Duramax builds handling over 1200 ft-lbs torque.
• SFI 29.3 Certification: Meets NHRA IHRA safety standards for flexplates used in competition drag racing and high-RPM applications.
• Precision Balanced: Computer balanced for zero vibration smooth operation up to 10 000 RPM protecting transmission and driveline components.
• Direct Bolt-On Fit: Replaces OEM flexplate on Allison 1000 transmissions with no modifications required for 2001-2010 6.6L Duramax.
• ARP Hardware Included: Comes with high-strength ARP flexplate bolts for secure mounting and long-term durability.

Product Notes

• Ideal for stock rebuilt or high-performance Allison 1000 transmissions in Duramax trucks.
• Inspect torque converter bolt pattern compatibility prior to installation.
• Packaged to prevent shipping damage standard ground freight not required.

Installation Notes

• Professional installation recommended.
• Torque ARP bolts to 70 ft-lbs in a star pattern using thread locker.
• Compatible with stock or aftermarket torque converters verify pilot hub alignment.

This Part Fits

Year	Make	Model	Submodel
2001-2004	Chevrolet	Silverado 2500 HD	LT
2007-2010	Chevrolet	Silverado 2500 HD	LT
2007-2010	Chevrolet	Silverado 2500 HD	LTZ
2004	Chevrolet	Silverado 2500 HD	WT
2007-2010	Chevrolet	Silverado 2500 HD	WT
2001-2004	Chevrolet	Silverado 3500	Base
2001-2004	Chevrolet	Silverado 3500	LS
2001-2004	Chevrolet	Silverado 3500	LT
2004	Chevrolet	Silverado 3500	WT
2007-2010	Chevrolet	Silverado 3500 HD	LT
2007-2010	Chevrolet	Silverado 3500 HD	LTZ
2007-2010	Chevrolet	Silverado 3500 HD	WT
2006-2010	Chevrolet	Express 2500	Base
2001-2004	Chevrolet	Silverado 2500 HD	Base
2001-2004	Chevrolet	Silverado 2500 HD	LS
2006-2010	GMC	Savana 2500	Base
2006-2010	GMC	Savana 3500	Base
2002-2004	GMC	Sierra 2500 HD	Base
2001-2002	GMC	Sierra 2500 HD	SL
2001-2004	GMC	Sierra 2500 HD	SLE
2007-2010	GMC	Sierra 2500 HD	SLE
2001-2004	GMC	Sierra 2500 HD	SLT
2007-2010	GMC	Sierra 2500 HD	SLT
2003-2004	GMC	Sierra 2500 HD	WT
2007-2010	GMC	Sierra 2500 HD	WT
2002-2004	GMC	Sierra 3500	Base
2001-2002	GMC	Sierra 3500	SL
2001-2004	GMC	Sierra 3500	SLE
2001-2004	GMC	Sierra 3500	SLT
2004	GMC	Sierra 3500	WT
2007-2010	GMC	Sierra 3500 HD	SLE
2007-2010	GMC	Sierra 3500 HD	SLT
2007-2010	GMC	Sierra 3500 HD	WT

Why Choose ATS Diesel?

• Over 20 years specializing in GM Duramax transmission upgrades.
• Manufactured in the USA with aerospace-grade machining tolerances.
• Engineered and tested for real-world high-torque diesel performance.

Frequently Asked Questions

• Q: Does this fit 2006-2007 classic body style Silverado 2500HD Duramax?
• A: Yes it fits all 2001-2010 6.6L Duramax LB7 LLY LBZ LMM trucks including classic and new body styles listed in fitment table.
• Q: What material and finish does the flexplate have?
• A: CNC machined from 1045 billet steel with black oxide finish for corrosion resistance and precise tooth engagement with torque converter.
• Q: What warranty coverage is provided?
• A: Backed by ATS Diesel limited lifetime warranty against manufacturing defects when installed correctly.

Shipping & Handling

• Method: UPS or FedEx Ground
• Availability: In stock – ships same or next business day
• Packaging: Sturdy cardboard box 12 x 12 x 3 inches
• Weight: 6.8 lbs