SuperPro SPF3517K Front Axle Radius Arm Lower Polyurethane Bushing Kit

The SuperPro SPF3517K is a front axle radius arm lower bushing kit engineered as a direct, high-performance replacement for worn or degraded OEM rubber bushings. Manufactured from SuperPro's proprietary engineering-grade polyurethane formula, this kit delivers a significant upgrade in durability, handling precision, and long-term suspension performance.

Worn radius arm bushings allow excessive deflection and movement in the suspension, leading to imprecise steering response, accelerated and uneven tire wear, and a generally sloppy, unpredictable drive feel. This SuperPro kit eliminates those issues by restoring—and improving upon—the original suspension geometry and pivot points of the front axle radius arm lower mount.

Key Features:

• Proprietary polyurethane construction — SuperPro's engineering-grade polyurethane formula is unaffected by extreme temperatures, oils, water, and coolant
• Low-deflection design — minimizes bushing flex for consistent, predictable handling characteristics
• Direct OEM replacement — drop-in fitment replaces factory rubber bushings without modification
• Retains OEM NVH characteristics — designed to retain OEM levels of noise and harshness isolation while delivering superior performance
• Improved tire wear — maintains correct suspension geometry to prevent irregular or premature tire wear
• Designed, engineered, and manufactured in Australia — developed and tested in some of the world's harshest terrain conditions
• Lifetime warranty — backed by SuperPro's no-exclusions lifetime warranty

SuperPro is the leading aftermarket suspension bushing manufacturer with over 40 years of experience developing polyurethane suspension solutions for performance, street, and off-road applications. The SPF3517K is sold as a complete kit with all components needed for installation.