SKU: ARP250-3003
UPC: 672036010850
MPN: 250-3003
The ARP 250-3003 Ford 9in Ring Gear Bolt Kit .750 UHL is a purpose-built fastener solution for differential assemblies requiring OEM-spec ring gear attachment. This chromoly bolt set delivers the load-bearing integrity necessary for high-torque drivetrain applications, including heavy towing, off-road recovery operations, and sustained performance driving. The black oxide finish provides corrosion resistance in demanding environments, while the 12-point head design ensures consistent torque application without fastener slippage during critical assembly phases.
Engineered to ARP standards, each bolt features a 7/16-20 thread specification and 0.75-inch length, optimized for Ford 8.8 and 9-inch ring gear mounting. The chromoly material composition delivers superior tensile strength compared to standard steel fasteners, critical when differential gears absorb rotational forces during acceleration, cornering, or trailer braking events. The 12-point head geometry distributes clamping pressure evenly across the ring gear contact surface, minimizing stress concentration that can lead to fastener stretch or bearing preload loss. This kit contains 10 bolts—the complete set required for a single differential assembly.
Intended for shop technicians, off-road enthusiasts, and vehicle builders working with Ford 8.8 or 9-inch differentials, this bolt kit serves applications ranging from street-driven trucks to dedicated rock-crawling rigs. Whether performing a ring-and-pinion swap, refreshing a worn differential, or upgrading to a performance-ratio gear set, proper fastener specification prevents assembly failures that compromise drivetrain reliability. The black oxide coating resists corrosion in salt-air environments and harsh off-road conditions, extending fastener service life across multiple build cycles.
ARP's fastener engineering is recognized across motorsports and heavy-duty vehicle communities for meeting or exceeding OEM specifications. The 250-3003 kit represents the correct fastening solution when factory hardware is compromised, lost, or upgraded as part of a performance differential installation. Proper torque application using a calibrated wrench ensures the bolt preload stability required for differential housing rigidity under load cycles.
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