Gator Fasteners Heavy Duty Flexplate Bolt Kit, Chevy/GMC (2001-25) 6.6L Duramax Diesel

Reusable flexplate bolts that clamp harder than stock

GM's factory flexplate bolts are torque-to-yield: they stretch when tightened and are meant to be thrown away after one use. Gator Fasteners' kit replaces them with reusable bolts made from its HD220 alloy, which Gator rates stronger than the 8740 chromoly used by most aftermarket bolts. Rolled threads and an oversized 12-point head add clamping load and spread torque more evenly.

What you get

• Reusable, so there is no need to buy new bolts every time the transmission comes out
• HD220 alloy, stronger than 8740 chromoly per Gator Fasteners
• Rolled threads and a larger-than-stock 12-point head
• Works with factory or aftermarket flexplates
• Cheap insurance against flexplate bolt failure on high-power or heavy-towing trucks

Fitment

2001-2025 Chevrolet Silverado and GMC Sierra 2500/3500 HD with the 6.6L Duramax: LB7, LLY, LBZ, LMM, LML and L5P.

Specifications (per Gator Fasteners)

In the box

• Flexplate bolt kit

Questions on fitment, or want our Idaho Falls shop to install it? Call 208-542-7793.