ARP Driveline
ARP Driveline Fasteners: Race-Proven Hardware Where It Matters Most
When power leaves the engine and enters the driveline, the fasteners holding everything together face some of the most punishing forces in any vehicle. ARP (Automotive Racing Products) has spent more than five decades engineering hardware specifically for these extreme demands, and their driveline fastener lineup reflects the same uncompromising philosophy that has made them the go-to choice for NASCAR, IndyCar, NHRA, and Formula 1 engine builders worldwide.
What ARP Offers in the Driveline Category
ARP's driveline catalog centers on the critical fasteners that connect rotating assemblies in manual and automatic drivetrain systems. Key product lines include:
- Flywheel Bolt Kits – Available in Pro Series configurations for a wide range of domestic and import applications, these chromoly bolts feature 12-point heads for precise torquing and are engineered to handle the cyclic shock loads generated by clutch engagement and high-rpm operation.
- Flexplate Bolt Kits – Designed for automatic transmission applications, ARP's flexplate bolts are built to maintain a secure connection between the crankshaft and torque converter. As power levels increase, so does the strain on these fasteners, making ARP's high-strength replacements a critical upgrade over factory hardware.
- Torque Converter Bolt Kits – Purpose-engineered to keep the torque converter firmly anchored to the flexplate under repeated high-torque acceleration events, these bolts are a staple of serious street and competition automatic transmission builds.
Why ARP Stands Apart in Driveline Applications
In order to ensure optimum quality control, ARP controls all aspects of the manufacturing process, with all operations performed in-house and closely monitored — a discipline that has allowed the company to establish a reputation for "zero defects" quality throughout the industry. That matters enormously in driveline applications, where a loosened or failed fastener can mean instant catastrophic drivetrain failure.
The process begins at the mill, where ARP orders only premium-grade materials including several proprietary alloys. The popular 8740 chrome moly steel, for example, comes in four distinct grades, and ARP uses only the top two — SDF and CHQ — which cost twice as much but provide the foundation for defect-free fasteners.
Automotive Racing Products achieved ISO 9001:2008 and AS9100 registration in 2009, and has maintained these certifications as a representation of its unwavering dedication to the production of the highest-quality fasteners available. For builders upgrading to high-performance flywheels, billet flexplates, or racing torque converters, pairing those components with ARP hardware is the logical — and responsible — final step.
Built for the Street, Validated on the Track
ARP's product line contains thousands of part numbers and has expanded to include virtually every fastener found in an engine and driveline, ranging from quality high-performance OEM replacement parts to exotic specialty hardware for Formula 1, IndyCar, NASCAR, and NHRA drag racing and marine applications. Whether you're building a weekend autocross car, a street/strip muscle car, or a dedicated drag racer, ARP driveline fasteners bring championship-level reliability to every build.
All ARP fasteners are proudly made in the USA to the industry's highest standards. Explore the full Driveline category to find the right ARP kit for your application, or visit the ARP brand page to discover their complete range of engine and drivetrain hardware.
