SuperPro SPF5614K Rear Leaf Spring Polyurethane Bushing Set

The SuperPro SPF5614K is a rear leaf spring bushing set engineered from SuperPro's specially formulated polyurethane elastomer — delivering the durability of plastic with the compliance of rubber. Designed as a direct replacement for worn OEM rubber bushings, this kit restores rear suspension precision and stability.

Why Replace Your Leaf Spring Bushings?

Leaf spring bushings stabilize the movement of the rear axle. Worn or damaged bushings allow the solid rear axle to shift, introducing rear-end passive steer, unpredictable handling, and instability under heavy braking. These effects are especially pronounced when carrying a load or towing a trailer.

Key Features:

• Polyurethane Construction: SuperPro's proprietary polyurethane resists wear, heat, and deformation far longer than OEM rubber
• Improved Rear Axle Stability: Reduces unwanted axle movement for more predictable steering response
• Performance Without NVH Penalty: Engineered to deliver polyurethane-level performance without increasing noise, vibration, or harshness
• Direct OEM Replacement: Designed to replace factory rubber bushings with no modification required
• Fitment Instructions Included: Step-by-step installation guide included with every kit
• Lifetime Warranty: Backed by SuperPro's lifetime warranty, including racing and off-road applications
• Australian-Engineered & Manufactured: All SuperPro products are designed, tested, and produced at their Brisbane, Queensland facility

SuperPro has over 45 years of automotive suspension experience and backs every bushing with rigorous lab, road, and track testing. The SPF5614K is the reliable choice for restoring rear suspension integrity and confidence.