U-B Machine Suspension Trailing Arm Bracket

U-B Machine Suspension Trailing Arm Brackets for Circle Track Performance

When it comes to rear suspension precision on the circle track, the trailing arm bracket is one of the most critical links between your chassis and your axle. It locates the rear axle laterally and longitudinally, absorbing the massive forces generated under acceleration, braking, and cornering. Getting this component right — in terms of material, geometry, and mounting style — can make the difference between a tight, predictable car and one that wanders under load.

U-B Machine, based in New Haven, Indiana, has built a strong reputation as a specialist in circle track chassis components. All of their parts are proudly hand-made in the USA, and their suspension trailing arm brackets are no exception. The brand's deep focus on race-ready hardware means these brackets are engineered with the specific demands of dirt and asphalt oval racing in mind — not street driving tolerances, but true competition-grade specifications.

What Makes U-B Machine Trailing Arm Brackets Stand Out

U-B Machine's trailing arm bracket lineup is tailored specifically for GM A-Body and G-Body chassis platforms — the backbone of countless circle track builds across the country. Their offerings span both upper and lower mounting positions and include multiple attachment styles to suit different build philosophies:

• Weld-On Trailing Arm Brackets — Designed for permanent chassis fabrication, these steel brackets offer a rock-solid connection point. Weld-on designs eliminate the flex and movement that can creep into bolt-on alternatives over a long race season, giving builders confidence in their geometry.
• Spherical Bearing Style — Upper trailing arm brackets featuring spherical bearing inserts allow smooth, bind-free articulation as the rear suspension cycles. This design is critical for maintaining consistent suspension geometry and preventing premature wear in high-cycle racing environments.
• Greaseable Floating Brackets — U-B Machine also offers a greaseable, floating-style trailing arm bracket (such as part #UBM-46-0050-L) for the driver side, allowing for controlled movement and easy field maintenance between races.
• Clamp-On Trailing Arm Mounts — For builders working with 3-inch diameter axle tubes, U-B Machine's clamp-on designs accept a 3/4-inch diameter rod end (adjustable up or down), integrate a coil-over shock mount, and are 100% TIG welded and powder coated black — all supplied with the necessary hardware.

Across every style, U-B Machine builds their trailing arm brackets from steel for strength and durability, ensuring they can handle the sustained abuse of competitive racing without fatigue cracking or deformation. Their manufacturing approach — hands-on, American-made craftsmanship — means each bracket meets the tight dimensional tolerances that serious chassis builders demand.

The Right Bracket for Your Build

Whether you're building a new race car from scratch, refreshing a seasoned campaigner's rear clip, or making geometry changes to dial in handling characteristics, U-B Machine's trailing arm bracket selection gives fabricators the flexibility they need. The combination of weld-on permanence, spherical bearing articulation, and greaseable floating designs means there's an appropriate option for virtually any circle track application on a GM A-Body or G-Body platform.

Explore the full Suspension Trailing Arm Bracket category for fitment details, or visit the U-B Machine brand page to discover their complete lineup of race-proven chassis and suspension components.