SuperPro SPF3745K Spring Shackle Upper Bush Kit

The SuperPro SPF3745K is a Rear Spring Shackle Upper Bush Kit engineered as a high-performance polyurethane replacement for worn or degraded OEM rubber bushings. Designed for the rear suspension position, this kit delivers a direct upgrade over factory rubber components, restoring and improving suspension performance, handling precision, and ride quality.

Key Features:

• Manufactured from SuperPro's proprietary engineering-grade polyurethane elastomer formula for superior durability
• Exhibits the best characteristics of both rubber and plastic — flexible and compliant, yet resistant to compression, deformation, and tearing
• Provides no increase in NVH (Noise, Vibration, and Harshness) compared to OEM rubber bushings
• Superior abrasion resistance extends service life well beyond standard rubber alternatives
• Restores correct suspension geometry and improves steering feel and handling responsiveness
• Knurled bushing surface retains grease longer, reducing maintenance intervals
• Rear fitment position — quantity: 1 kit per vehicle
• Backed by SuperPro's Lifetime Warranty for bushings, including off-road, racing, and motorsport applications

Unlike standard rubber bushings that compress under load and develop micro-tears over time, SuperPro's polyurethane construction flexes without deforming, maintaining consistent performance throughout its service life. The result is more precise handling, improved tyre wear, and a longer-lasting suspension component. Developed and manufactured in Australia with over 40 years of suspension engineering expertise, SuperPro bushings are tested in some of the world's most demanding conditions.