Super Pro Radius Arm Bushing Kit

Super Pro Radius Arm Bushing Kits: Precision Polyurethane for Lasting Suspension Control

When radius arm bushings wear out, the effects ripple through every aspect of how your vehicle drives. Radius arm bushing kits are the critical interface between the radius arm and its mounting points on the differential and chassis — and once they degrade, axle location shifts, caster wanders, and steering response turns vague. Super Pro has spent decades engineering a definitive polyurethane solution to this problem, and their radius arm bushing kits represent some of the most thoughtfully developed components in the category.

Why Super Pro Stands Apart in This Category

Worn bushings allow significant deflection and movement leading to slower responses, a sloppy drive, and irregular tire wear — and the wear is accelerated even further in upgraded trucks and SUVs, where larger wheels and tires place greater demands on every bushing. Super Pro addresses this head-on with a material advantage that sets them apart: their bushings are made with a proprietary engineering-grade polyurethane formula, designed to be unaffected by extreme temperatures, oils, water, or coolant — a genuinely superior alternative to rubber.

Super Pro has a competitive edge through products developed, tested, and designed in Australia, with a proprietary polyurethane mix thoroughly tested and refined over 40+ years to suit some of the world's harshest driving conditions. That real-world durability focus is especially relevant for radius arm applications, where off-road flex, heavy loads, and constant articulation put ordinary rubber bushings at a disadvantage.

Engineering Technologies Built Into Every Kit

Super Pro radius arm bushing kits benefit from the brand's full suite of proprietary design innovations. Among these are caster offset bushings that provide caster correction in non-adjustable suspensions, self-lubrication that extends bush durability and excludes contaminants, and voiding that allows polyurethane to displace into grooves under load — reducing NVH (Noise, Vibration, Harshness).

The SuperPro knurl bore combined with integral grease retention lips keeps lubricating grease intact for the life of the bushing, eliminating the need for periodic re-greasing. The properties of extreme resistance to abrasion, low compression set, high tear strength, and resistance to oils and solvents make Super Pro's polyurethane ideal for automotive applications.

Complete Kits for Full Suspension Restoration

Super Pro's radius arm bushing kits can include front radius arm-to-diff (offset) and chassis mounts, front panhard rod bushings, rear radius arm-to-diff and chassis mounts, and rear trailing arm upper bushings — giving builders and mechanics everything needed for a comprehensive suspension refresh in a single purchase. These kits help preserve accurate caster and arm location while reducing unwanted arm movement under braking and cornering.

Polyurethane bushings have traditionally had a reputation for increasing NVH, but Super Pro has spent years addressing this flaw — and now offers bushings that deliver polyurethane levels of performance without the NVH increase. The result is a kit equally at home on a daily-driven truck, a lifted 4x4, or a vehicle being returned to factory-correct geometry.

Backed by a Lifetime Warranty

All Super Pro radius arm bushes and kits are backed by a lifetime warranty , reflecting the brand's confidence in both their materials and their engineering. Whether you're restoring worn suspension on a work truck or dialing in caster correction after a lift, Super Pro's radius arm bushing kits deliver measurable, lasting results. Browse the full selection below, or explore the complete Super Pro brand catalog and the broader Radius Arm Bushing Kit category for all available fitments.