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U-Bolts

U-bolts are a critical component for suspension. Commonly used as fasteners for leaf spring and axle assemblies, they’re a simple and effective solution, and Driveline supplies a wide range of options to suit all types of vehicles, whether it’s a 4WD or off-highway machinery.

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U-Bolt Solutions at Driveline

Driveline is Australia’s leading independently owned and operated underbody and power transmission specialist. Our extensive catalogue of parts includes a variety of U-bolts to suit most 4WD suspension systems. With access to OEM and aftermarket parts suppliers from across the world, the Driveline team can source U-bolts for any application.

u bolt

The U-Bolt Specialists

Over the past 40 years Driveline has earned a reputation for supplying reliable underbody and power transmission parts and assemblies to the Australian market. And whether you’re trekking off-road in a 4WD or hard at work in a mine site, U-bolts play a key role in keeping your ride stable. 

U-bolts don’t last forever, especially on rough roads and surfaces, so it’s important to keep an eye out for signs of wear. A worn-out U-bolt can turn into a big problem, leading to suspension failure or putting stress on other components. Driveline knows how to keep you moving with quality U-bolts from the world’s best brands. 

Talk to us today to find out more about our catalogue of U-bolts.

U-Bolts for Heavy-Duty Suspension and Powertrains

U-bolts are a ubiquitous fastener that are found in vehicles and equipment across Australia. Like most fasteners, U-bolts are long-lived and highly reliable, but they should be replaced during servicing, suspension replacement, or if they are showing signs of wear, corrosion or damage. Driveline can assist with U-bolts for a range of equipment, including:

  • 4WDs and light fleet vehicles
  • On- and off-road trucks
  • Mining vehicles
  • Agriculture equipment
  • Defence applications


As one of the world’s most versatile fasteners, U-bolts have found a home in vehicles, machinery and equipment across every industry. From mining and manufacturing to materials handling, defence, road transport, agriculture and beyond, Driveline can supply U-bolts to keep you operational.

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Suspension

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Universal Bolts - FAQs

A U-bolt is a type of bolt that is shaped like the letter U with screw threads on both open ends. They are a ubiquitous fastener commonly found on a wide range of vehicles and machinery. They are frequently used to support axles, leaf springs, pipes and more.

U-bolts are a major part of many vehicle suspension and powertrain systems. They are often used to connect a vehicle’s axles to the leaf springs or to the body of the vehicle.

No. U-bolts should always be replaced when repairing or replacing suspension components like leaf springs. U-bolts function as a simple clamp that holds components together, but they are typically torqued to yield. This causes the bolt to deform slightly and become unsuitable for reuse.

U-bolts should be inspected regularly for corrosion, stretching, or damage, especially after heavy use or off-road conditions. They should be replaced whenever removed or when visible wear or rust is present.

Over-tightening a U-bolt can strip the threaded ends, damage the nuts, or even shear the body of the bolt. While you are unlikely to damage the leaf springs or axles, damage to the U-bolt may not be apparent until it shears under load. Check the manufacturer’s torque specifications and avoid overtightening.

U-bolts come in a variety of shapes and sizes, depending on the application. They are typically classified by a rounded, square or semi-rounded profile. U-bolts are also available in a variety of sizes, diameters, coated finishes, thread pitches and more.

Driveline supplies U-bolts for:

  • 4WDs and light fleet vehicles
  • On-road and off-road trucks
  • Mining vehicles
  • Agricultural machinery
  • Defence applications

Warning signs include uneven suspension, clunking noises when driving, visible rust, bent or stretched bolts, or loose components. If any of these appear, the U-bolts should be replaced immediately.

For All Universal Bolt Enquiries

Fill out the form to get in touch with Driveline to source centre bearings or to enquire about our driveshaft manufacturing services.

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