Fits select 1963-1979 Chevrolet Bel Air, Biscayne, Camaro, Caprice, Chevelle, Chevy II, Corvette, El Camino, Impala, Monte Carlo, and Nova models.

The Yukon Gear & Axle YSPBLT-066 cross pin bolt is a critical hardware component designed to secure the differential cross pin within the carrier. This bolt is specifically engineered for GM 8.2-inch rear ends and 1963-1979 cast iron Corvette differential housings. It is intended for use in OEM Positraction applications only, ensuring the internal spider gears and cross pin remain properly seated during operation.

• Fits GM 8.2-inch and 1963-1979 Corvette cast iron differentials
• Designed for OEM Positraction applications only
• High-strength steel construction for reliable retention
• Essential for differential rebuilds and carrier service
• Manufacturer Part Number: YSPBLT-066

Fits select 1963-1987 Buick, Chevrolet, GMC, and Pontiac vehicles with GM 12-bolt differentials (V6 / V8). This Yukon Gear & Axle cross pin bolt is a high-strength fastener designed specifically to secure the pinion shaft within the differential carrier, preventing pin migration and potential housing damage.

Engineered for a precise fit in factory-equipped limited-slip units, this bolt replaces worn or sheared factory hardware during gear swaps or locker installations. As a critical component of differential service, using a dedicated Positraction-specific bolt ensures the correct thread pitch and length for secure engagement in OEM carriers.

• Manufacturer Part Number: YSPBLT-065
• Specifically designed for OEM Positraction applications only
• Direct replacement for GM 12-bolt passenger car and truck differentials
• High-strength construction to withstand rotational stress and torque
• Essential hardware for carrier maintenance and ring and pinion service

Fits select 1985-2017 Ford F-150, F-250, F-350, Econoline, Expedition, Transit, and Lincoln Mark LT/Navigator with 9.75" or 10.25" C-clip axles.

The Yukon Gear Cross Pin Bolt is an essential hardware component designed to secure the differential cross pin (pinion shaft) within the carrier. This bolt is a direct replacement for factory hardware that often becomes worn, rounded, or sheared during differential service or high-mileage operation. Precision-threaded and manufactured for a secure fit, it ensures the internal spider gears remain properly indexed for reliable drivetrain performance.

• Thread Specification: 5/16" x 18
• Compatible Axles: Ford 9.75" and 10.25" with C-clip retention
• Direct replacement for OE differential cross pin bolts
• Essential for differential rebuilds and gear ratio changes
• Manufacturer Part Number: YSPBLT-059

The Vibrant Performance 10mm GM Style Spring Bolt Kit provides the necessary hardware to maintain a secure, flexible seal at exhaust flange connections. These spring-loaded bolts are engineered to allow for engine movement and vibration while maintaining constant tension on the exhaust gasket, preventing leaks and protecting manifold or downpipe flanges from stress-related fatigue.

• GM-style design for reliable exhaust system articulation
• Thread Pitch/Size: 10mm
• Material: High-strength steel construction
• Part Number: 10113

Kit includes: (3) 10mm Bolts, (3) Tension Springs, and (3) Nuts.

Engineered for high-horsepower and high-RPM racing applications, these Manley connecting rod bolts are manufactured from premium ARP2000 material to provide superior clamping force and reliability. These 3/8" diameter fasteners feature a 1.500" under head length (UHL) and are specifically designed for compatibility with Manley rod part number 14024.

• Manufactured by ARP from ARP2000 alloy for high tensile strength and fatigue life
• Precision thread rolling and specialized heat treatment ensures maximum thread integrity
• Optimized for consistent preload when installed using the recommended stretch method
• Replaces or upgrades fasteners in high-performance street and competition engines
• Specifications: 3/8" diameter, 1.500" Under Head Length (UHL)
• Quantity: Pack of 4 bolts
• Manufacturer Part Number: 42350-4

Secure your rotating assembly with this set of Manley ARP Custom Age 625+ 3/8" connecting rod bolts. These fasteners are engineered for extreme high-horsepower and high-RPM racing applications where maximum tensile strength and consistent clamp load are critical to preventing rod failure.

Manufactured by ARP to Manley's exacting standards, these bolts undergo precision thread rolling and specialized heat treatment. Achieving the correct preload via the manufacturer-recommended stretch method is vital; these fasteners provide the necessary elasticity to maintain clamping force without exceeding their maximum yield point. This ensures the rod cap remains seated and the bearing clearance stays consistent under heavy inertial loads.

• Material: ARP Custom Age 625+
• Thread Diameter: 3/8"
• Quantity: Set of 4 bolts
• Construction: Precision rolled threads and heat-treated for maximum tensile strength
• Intended Use: High-RPM racing and high-horsepower street engines
• Manufacturer Part Number: 42320-4

Secure your vehicle's leaf springs and axle assembly with this Superlift high-strength square U-bolt kit. Designed for heavy-duty suspension applications, these U-bolts provide the critical clamping force necessary to maintain axle alignment and suspension stability, especially on lifted trucks and SUVs. Each bolt is manufactured from high-grade steel to resist stretching and ensure consistent torque retention under load.

• Manufacturer Part Number: 11884
• Diameter: 5/8 inch
• Width: 3-1/4 inches
• Length: 16 inches
• Bend Type: Square
• Construction: High-strength steel
• Hardware Included: Four (4) U-bolts, eight (8) nuts, and eight (8) washers

Properly torqued U-bolts are essential for suspension safety and preventing axle wrap. This 4-pack includes all necessary grade-matched nuts and washers for a complete installation or to replace worn-out factory hardware during a lift kit installation.

Fits select 2000-2024 Lexus GX460, GX470 and Toyota 4Runner, FJ Cruiser, Sequoia, Tacoma, and Tundra.

The SPC Performance 21060 Front Upper Control Arm Hardware Kit is a critical solution for suspension service on Toyota and Lexus trucks and SUVs. The factory front upper control arm (UCA) mounting bolts are notorious for seizing due to corrosion, often requiring technicians to cut them out during arm removal or replacement. This kit provides the necessary high-strength hardware to restore factory mounting integrity.

• Direct replacement for the factory UCA long bolt and nut
• Essential for vehicles where OE hardware has been cut or damaged during removal
• High-quality materials designed to withstand heavy-duty truck and SUV applications
• Services one side of the vehicle; order two kits for a complete front-end service
• Manufacturer Part Number: 21060

Ensure your alignment remains locked with the Skunk2 Allen Bolt Hardware Kit. Designed specifically as replacement fasteners for Skunk2 Tuner Series and Pro-Series Ball Joints, these M6x1.0x22mm bolts provide the precise clamping force necessary for adjustable camber kits. This kit includes the necessary split washers for vibration resistance and 13mm O.D. flat washers for proper load distribution across the ball joint housing.

• Compatibility: Fits Skunk2 Tuner and Pro-Series Ball Joints
• Thread Dimensions: M6 x 1.0 x 22mm
• Washers: 13mm O.D. Flat Washers and M6 Split Washers
• Includes: 4 Allen Bolts, 4 Split Washers, and 4 Flat Washers
• Manufacturer Part Number: 916-05-0660

Ensure consistent lubrication and long-term durability for your suspension components with the RockJock Greaseable Bolt Kit (CE-91108). While specifically engineered to service RockJock Johnny Joint rod ends, this high-strength fastener is an ideal solution for any suspension pivot or chassis application requiring a reliable grease path.

Constructed from Grade 8 steel to withstand heavy shear loads and off-road stress, the bolt features an integrated Zerk fitting for easy maintenance. The assembly is finished with a stover nut to provide a mechanical lock that resists loosening under vibration, making it a critical upgrade for high-articulation suspension systems.

• Dimensions: 5/8 in.-18 thread pitch x 4 in. length
• Material: High-strength Grade 8 steel
• Hardware included: Two flat washers and one stover lock nut
• Function: Integrated Zerk fitting allows for direct grease delivery to internal bushings
• MPN: CE-91108

The RockJock CE-91107 greaseable bolt is a heavy-duty hardware solution designed for smooth suspension articulation and simplified maintenance. Engineered primarily for use with Johnny Joint rod ends, this high-strength Grade 8 bolt allows you to deliver grease directly to the internal pivot points through an integrated Zerk fitting, eliminating the need for component disassembly during routine servicing.

• Manufacturer Part Number: CE-91107
• Dimensions: 9/16-18 thread pitch x 4-inch length
• Material: High-tensile Grade 8 steel for maximum shear strength
• Hardware Included: Zerk-fitted bolt, two flat washers, and one stover nut
• Function: Provides a lubricated pivot point for Johnny Joints and custom link builds

Designed for universal applications where the leaf spring pack is centered on the axle, the Rancho RS8127 leaf spring center bolt kit provides a reliable solution for replacing worn, fatigued, or rusted original hardware. This kit is a critical component when modifying leaf spring suspensions or installing aftermarket lift kits, ensuring the spring pack remains securely aligned and clamped.

• High-Strength Construction: Manufactured from Grade 8 steel to withstand the high shear loads and tension required in leaf spring assemblies.
• Corrosion Resistance: Hardware is zinc-plated for long-term protection against road salt, moisture, and debris.
• Complete Kit: Includes two 0.31-inch diameter x 5-inch long center pin bolts and two 0.313-inch nuts to service a pair of leaf spring packs.
• Universal Fitment: Engineered to work with most multi-spring packs requiring a 5/16-inch center pin.
• Reliability: Direct replacement for OE hardware that has reached its service life or is being upgraded for performance applications.

Fits 1987-1995 Jeep Wrangler (Base, Islander, Laredo, Renegade, Rio Grande, S, Sahara, SE, Sport). This kit is designed to replace worn, damaged, or corroded factory U-bolts to ensure your front axle remains securely mated to the leaf spring packs.

The Rancho RS720 kit is engineered specifically for use with Rancho suspension systems and is compatible with both stock and aftermarket leaf spring packs. Manufactured from high-strength steel, these U-bolts provide the clamping force necessary for off-road durability. For safety and performance, always inspect U-bolts for proper torque values after the first 100 miles of installation and following every off-road excursion.

• Fits 1987-1995 Jeep Wrangler (YJ)
• High-strength steel construction for maximum durability
• Compatible with stock or aftermarket leaf spring packs
• Designed for use with Rancho suspension systems only
• Manufacturer Part Number: RS720
• Master Quantity: 15

Fits 1972-1986 Jeep CJ5, CJ6, CJ7, and Scrambler models. This Rancho RS712 Front U-Bolt Kit is engineered to provide a secure connection between your front axle and leaf spring pack, replacing worn, stretched, or broken factory hardware.

Constructed from high-strength steel, these U-bolts are designed specifically for use with Rancho suspension systems. They offer the versatility to work with either stock leaf springs or thicker aftermarket spring packs. For continued safety and performance, it is recommended to inspect and re-torque all hardware to proper specifications after the first 100 miles of use and following any off-road excursions.

• Manufacturer Part Number: RS712
• Material: High-strength steel
• Position: Front
• Compatibility: Works with stock or aftermarket leaf spring packs
• Application: Designed specifically for Rancho suspension systems
• Maintenance: Requires inspection/re-torque every 100 miles and after off-road use

Fits select 2015-2023 Chevrolet Colorado and Ford Ranger models.

The ARB Old Man Emu (OME) U-bolt washer and nut kit is essential hardware for the proper installation of rear leaf springs. As a critical component of a fully integrated 4x4 suspension system, these nuts and washers are designed to maintain clamping force and secure the leaf pack to the axle assembly under high-load conditions.

• Designed specifically for rear leaf spring installation and maintenance
• Integrated hardware to support Old Man Emu suspension systems
• Durable construction to withstand the stresses of off-road articulation and heavy towing
• Provides a reliable replacement for worn or corroded factory hardware
• Manufacturer Part Number: OMEU81

Fits 2005-2015 Nissan Xterra (Off-Road, PRO-4X, S, SE, and X models).

Ensure your rear suspension is properly secured with the ARB Old Man Emu U-Bolt Washers and Nuts kit. This hardware set is specifically designed for the installation of rear leaf springs, providing the necessary clamping force and reliability required for both daily driving and demanding off-road use. As part of the fully integrated OME suspension range, these components are engineered to work seamlessly with OME U-bolts and leaf spring assemblies.

• Manufacturer Part Number: OMEU72
• Application: Installation of rear leaf springs
• System Context: Rear suspension hardware for leaf spring setups
• Included Hardware: Specific washers and nuts required for U-bolt fitment
• Brand Quality: Engineered as part of the Old Man Emu integrated suspension system

Fits select 1984-2001 Jeep Cherokee and Suzuki Samurai models. This ARB Old Man Emu suspension hardware is specifically engineered to integrate with OME leaf spring systems, ensuring a precise fit and reliable performance under off-road conditions.

The OMEU60 U-bolt washer and nut are essential components for the proper installation of front or rear leaf springs. Designed to meet the high standards of the Old Man Emu range, these fasteners provide the necessary clamping force and durability required for heavy-duty 4x4 applications.

• Replaces or completes hardware for leaf spring installation
• Engineered for high-strength suspension integration
• Compatible with ARB Old Man Emu U-bolts and spring kits
• Manufacturer Part Number: OMEU60

Fits 1960-1989 Toyota Land Cruiser models. This ARB Old Man Emu (OME) hardware kit is engineered for the precise installation of rear leaf springs, providing the necessary securing components for a complete suspension overhaul or maintenance.

As part of the integrated OME suspension system, these washers and nuts are manufactured to work specifically with OME U-bolts and spring kits. Using the correct hardware is critical for maintaining proper torque and ensuring the structural integrity of your vehicle's leaf spring assembly during off-road use.

• Manufacturer Part Number: OMEU59B
• Position: Rear
• Application: Rear U-bolt fastening and leaf spring installation
• Material: High-strength steel construction
• Compatibility: Designed for 1960-1989 Toyota Land Cruiser models

Fits select 1969-1985 Toyota Land Cruiser and 1989-1996 Isuzu Amigo and Rodeo.

The ARB Old Man Emu (OME) U-Bolt Washer and Nut (MPN: OMEU59A) is a critical hardware component designed for the secure installation of front or rear leaf springs. Part of the fully integrated OME suspension range, this fastener set ensures that U-bolts maintain their torque and structural integrity under the high-stress conditions of off-road driving and heavy-duty hauling.

• Specifically engineered for leaf spring installation on select 4x4 vehicles
• Designed to complement Old Man Emu U-bolts and suspension systems
• High-strength construction to withstand vibration and trail loads
• Manufacturer Part Number: OMEU59A

Fits select 1984-2001 Jeep Cherokee (XJ) models with the 8.25-inch rear axle.

This Old Man Emu suspension U-bolt is engineered to provide the high-tensile clamping force required to secure leaf spring packs to the axle housing. Specifically designed for use with OME suspension systems, this hardware replaces worn or stretched factory U-bolts to ensure your suspension geometry remains stable under load and during off-road articulation. Each unit is constructed from high-strength steel and includes the necessary heavy-duty washer and nut for a complete installation.

• Specifically designed for Jeep Cherokee XJ applications with 8.25-inch axles
• High-strength steel construction ensures reliable clamping force
• Corrosion-resistant finish for long-term durability
• Includes one (1) U-bolt, one (1) nut, and one (1) washer
• Essential for new leaf spring installations or lift kit upgrades
• Manufacturer Part Number: OMEU57

Fits select 1989-1994 Toyota Pickup, 2005-2023 Toyota Tacoma, and 2007-2021 Toyota Tundra models.

This ARB Old Man Emu (OME) U-bolt washer and nut kit is essential hardware for the correct installation of rear leaf springs. Designed to work as part of a fully integrated suspension system, these components provide the reliable clamping force needed to secure the axle to the spring pack. Whether you are replacing worn factory hardware or completing a full OME suspension lift, this high-strength hardware ensures your U-bolts maintain proper torque and alignment under heavy loads and off-road articulation.

• Manufacturer Part Number: OMEU53B
• Used for secure installation of rear leaf springs
• Engineered for integration with Old Man Emu suspension systems
• High-strength construction for durable fastening
• Essential for maintaining suspension geometry and safety

Fits select 2005-2017 Nissan Frontier, Toyota Tacoma, and Suzuki Equator models. This Old Man Emu (OME) U-bolt washer and nut kit is an essential component for secure rear leaf spring installation, designed to integrate seamlessly with the full OME suspension range.

As part of ARB’s commitment to complete suspension integration, this hardware is manufactured to handle the increased loads and stresses of off-road use. Whether you are installing a new set of Dakar leaf springs or replacing worn factory hardware, these high-strength fasteners ensure proper clamping force and long-term durability for your vehicle's rear suspension system.

• Specifically engineered for rear leaf spring installation
• Designed for use with Old Man Emu U-bolts and suspension components
• Durable finish for corrosion resistance in harsh environments
• Manufacturer Part Number: OMEU53A
• Includes: (1) Washer and (1) Nut

Fits 1979-1994 Toyota Pickup and 1984-1990 Toyota 4Runner.

The Old Man Emu OMEU53 U-bolt washer and nut are heavy-duty hardware components designed for the secure installation of rear leaf springs. As part of ARB's integrated suspension system, these fasteners provide the necessary clamping force to maintain spring alignment and axle stability during off-road articulation and heavy loading.

• Designed specifically for rear leaf spring U-bolt applications
• Engineered to fit Toyota 4WD suspension geometries
• High-strength construction for reliable torque retention and durability
• Essential hardware for new suspension installs or replacing worn OE components
• Manufacturer Part Number: OMEU53

Fits 1980-2001 Toyota Land Cruiser Base.

The Old Man Emu suspension range is engineered as a fully integrated system. This ARB Old Man Emu U-bolt washer and nut (MPN: OMEU51) is a critical hardware component used during the installation of front leaf springs. Designed to meet the same rigorous standards as OME shocks and springs, this hardware ensures a secure fit and reliable performance for your Land Cruiser's suspension assembly.

• Manufacturer Part Number: OMEU51
• Application: Front Leaf Spring Installation
• Component Type: U-Bolt Washer and Nut
• Compatible with 1980-2001 Toyota Land Cruiser Base models
• Designed for seamless integration with OME suspension kits

Fits select 2005-2020 Chrysler 300, Dodge Challenger, Charger, Durango, Magnum, and Ram 1500, as well as Jeep Grand Cherokee and Wrangler/JK models.

Kooks BK111 header bolt kits provide a premium hardware solution for securing headers to Hemi or Modular cylinder heads. These bolts are engineered to replace worn or corroded factory hardware, ensuring a consistent seal that prevents exhaust leaks. Manufactured from T304 aircraft-quality stainless steel, this kit is designed to withstand the extreme heat cycles and harsh under-hood environments of high-performance street and race applications.

Each bolt features precision-rolled M8-1.25 threads and a 25mm length to ensure proper engagement and torque retention. Handcrafted in the USA and dyno-tested for reliability, these stainless fasteners offer superior corrosion resistance compared to standard grade-8 or OE bolts.

• Manufacturer Part Number: BK111
• Material: T304 Aircraft-Quality Stainless Steel
• Thread Pitch: M8-1.25
• Length: 25mm
• Quantity: 16 Bolts
• Proudly Manufactured in the USA
• Limited Lifetime Warranty to the original purchaser

Fits select 1967-2018 Buick, Cadillac, Chevrolet, GMC, Jeep, Oldsmobile, and Pontiac models equipped with LS-series engines.

Ensure your exhaust system remains leak-free with the Kooks Headers and Exhaust BK110 Locking Header Bolt Kit. Designed specifically for the high-vibration environment of LS-based engines, these bolts feature a specialized locking mechanism to prevent hardware from backing out during heat cycles. This solves the common issue of loose header flanges and protects your header gaskets from premature failure.

Manufactured in the USA from T304 aircraft-quality stainless steel, these fasteners offer exceptional strength and corrosion resistance, outperforming standard OE hardware. The 25mm length ensures proper thread engagement into the cylinder head while the M8-1.25 pitch provides a precise fit for factory and aftermarket LS heads.

• Product Line: Kooks Locking Hardware
• Material: T304 Aircraft Quality Stainless Steel
• Thread Size: M8 x 1.25
• Underhead Length: 25mm
• Quantity: Set of 12 bolts with locking tabs
• Engine Application: LS-based V8
• Manufacturer Part Number: BK110

Fits select 2010-2023 Ford F-150 and Mustang models (5.0L).

This Kooks BK109 Header Bolt Kit is designed to provide a secure, reliable seal between your high-performance headers and the cylinder head. These fine-thread fasteners are essential for ensuring even clamping force, preventing exhaust leaks that can lead to power loss and engine bay noise. Handcrafted in the USA, this kit is specifically engineered for the Ford 5.0L 4V Coyote engine architecture.

• Replaces worn or damaged OE manifold hardware with precision-engineered bolts
• Fine thread pitch (1.25mm) for increased clamping torque and vibration resistance
• Durable construction to withstand the high heat cycles of performance exhaust systems
• Manufactured in the USA by Kooks Headers and Exhaust

• Manufacturer Part Number: BK109
• Bolt Size: M10
• Thread Pitch: 1.25mm (Fine Thread)
• Length: 25mm
• Quantity: 16 Bolts
• Engine Fitment: 5.0L 4V Coyote

Designed for high-performance Small Block Ford applications, this Kooks Headers and Exhaust Adapter Plate Kit (7010-KIT) provides a precision-engineered interface for custom exhaust configurations. These adapter plates are handcrafted in the USA to ensure exact fitment and maximum exhaust flow for street, race, and off-road builds.

Constructed from T304 stainless steel, this kit is built to withstand extreme heat and the high-vibration environment of a racing engine. Each component is dyno and race-tested to verify performance and durability. This kit allows builders to adapt headers or manifolds to specific cylinder head configurations, solving clearance and mounting issues while maintaining a leak-free seal.

• Fits Small Block Ford engines
• Manufactured from T304 aircraft-quality stainless steel
• Handcrafted in the USA
• Dyno and race tested for performance reliability
• Designed for maximum power and durable sealing
• Manufacturer Part Number: 7010-KIT

Fits select 2002-2007 Subaru WRX and 2004-2007 Subaru WRX STi.

The Kartboy Rear Lockdown Bolts (KB-066-LOCK) are engineered to eliminate unwanted movement in the rear subframe. From the factory, the subframe is mounted via soft rubber bushings that allow the assembly to shift under load, leading to a vague handling feel and drivetrain slop during aggressive shifts or hard cornering.

By threading these high-strength bolts through the subframe and directly into existing chassis points, you effectively lock the subframe in place. This provides a rigid connection that improves throttle response and stabilizes the rear suspension geometry without the need for a full bushing press-out. This is a must-have upgrade for GD-chassis owners looking to sharpen their vehicle's feedback.

• Eliminates rear subframe deflection for better power delivery
• Enhances chassis rigidity and handling predictability
• Direct bolt-on installation into factory threaded holes
• High-strength hardware designed for performance use
• Manufacturer Part Number: KB-066-LOCK
• Includes: (2) Lockdown Bolts

Fits 1998-2002 Dodge Ram 2500 and 3500 (5.9L).

The Fluidampr High Strength Bolt Kit (MPN 300009) provides the essential hardware required to securely mount your performance harmonic balancer in high-torque environments. Specifically recommended for Cummins 5.9L engines producing up to 700 hp and 1,250 ft-lbs of torque, this kit provides the superior clamping force needed to prevent damper slippage or fastener failure. Each kit features premium heat-treated, high-strength bolts from ARP and a specialized diamond-impregnated friction washer to ensure a stable, precise installation.

• Engineered for high-performance applications up to 700 hp / 1,250 ft-lbs torque
• Includes premium heat-treated ARP high-strength bolts
• Diamond-impregnated friction washer increases grip between the crank and damper
• Provides secure mounting for Fluidampr vibration dampers
• Manufacturer Part Number: 300009