Super Pro SPF4460K Leaf Spring Bushing & Pin Kit

The Super Pro SPF4460K is a polyurethane leaf spring bushing and pin kit engineered to restore and enhance suspension performance. Leaf spring bushings play a critical role in stabilizing the movement of the rear axle — worn or inferior bushings allow the axle to shift, introducing passive rear-end steer that causes the vehicle to wander and handle unpredictably, especially under heavy braking or when carrying a load.

SuperPro's proprietary polyurethane compound is specifically formulated to outperform factory rubber bushings in durability, temperature resistance, and load handling. Unlike OEM rubber bushings designed only for stock ride heights, tire sizes, and load ratings, SuperPro polyurethane bushings maintain their integrity across a wide range of conditions — on-road, off-road, and under towing or hauling stress.

Key Features:

• Manufactured from SuperPro's proprietary polyurethane compound — unaffected by extreme temperatures, oils, water, or coolant
• Superior alternative to rubber: higher quality, quieter operation, and significantly longer service life
• Restores correct suspension geometry and helps maintain proper alignment
• Improves handling stability, reduces axle wander, and enhances braking performance
• Suitable for on-road, off-road, towing, and load-carrying applications
• Backed by a lifetime warranty to the original purchaser (SPF-prefix bushing range)
• No limitations on scope of use — warranty remains valid in motorsport and off-road competition

SuperPro has over 40 years of experience developing and engineering suspension components. All products are developed, tested, and designed in Australia with input from professional suspension technicians and engineers. The SPF4460K is a direct-fit kit using factory mount locations for straightforward installation.