Mr. Gasket Automatic Transmission Torque Converter Bearing

Mr. Gasket Torque Converter to Flexplate Bolts & Hardware

When it comes to securing an automatic transmission's torque converter to the flexplate, the fasteners you choose matter as much as any other drivetrain component. Mr. Gasket has built its reputation over six decades on exactly this kind of detail-level engineering — and its lineup of automatic transmission torque converter bearings and bolt kits reflects that same performance-first philosophy.

Born from the drag strip. Mr. Gasket was founded in the early 1960s by drag racer Joe Hrudka, who used his own ’57 Chevy as a rolling test bed to develop parts that could survive the punishing loads of competition. That hands-on racing heritage is woven into every fastener the brand produces. Today, as part of the Holley Performance family, Mr. Gasket continues to engineer hardware trusted by hot rodders, muscle car restorers, and bracket racers alike.

Grade 8 Torque Converter Bolt Kits

Mr. Gasket’s torque converter-to-flexplate bolt kits are the heart of this product category. Each bolt is forged from high-quality steel and heat-treated for extra strength, meeting Grade 8 specifications — a must for high-performance and race applications where converter loads can be extreme. A black oxide (black plated) finish resists rust and corrosion under the harsh thermal cycling that characterizes automatic transmission environments. Kits are also complete with lock washers where required, ensuring nothing backs out under vibration or shock loading.

Wide Application Coverage: GM, Ford & Chrysler

One of the key strengths of Mr. Gasket’s torque converter bolt lineup is its broad application coverage across the three major American drivetrains:

• GM TH400 — 3/8 in.-16 x 0.5 in., 3-piece kits (part 6715)
• GM TH350 / Powerglide — 3/8 in.-24 x 5/8 in. with locking nuts, 3-piece kits
• GM 10-inch Race Converter — 7/16 in.-20 x 1.25 in. with nuts, 3-piece kits (part 6719) — built specifically for all-out race converter applications
• Ford — 3/8 in.-24 with flanged lock nuts, 4-piece kits (part 6716)
• Chrysler / Mopar (exc. Hemi) — 5/16 in.-24 x 7/16 in., 4-piece kits (part 6718)

This variety means whether you’re building a classic GM muscle car, a Ford-powered street machine, or a Mopar performance project, there’s a Mr. Gasket kit engineered to fit your specific transmission and converter combination.

Why Hardware Quality Matters Here

The torque converter bolt is a deceptively simple fastener tasked with a demanding job: it must withstand the repeated torsional stress of power pulses from the engine, heat soak from the transmission fluid, and the lateral shear forces generated during hard acceleration. An under-spec bolt that stretches or loosens can allow converter-to-flexplate movement, leading to flexplate cracking, converter damage, and costly failures. Mr. Gasket’s Grade 8, heat-treated specification eliminates that vulnerability for both street and strip builds.

Explore the full Mr. Gasket brand catalog for more drivetrain, engine, and performance hardware solutions, or browse the complete selection of automatic transmission torque converter components to find the right fit for your build.