Prothane 18-1006 Leaf Spring Eye and Shackle Bushing Kit

The Prothane 18-1006 is a complete leaf spring eye and shackle bushing kit designed as a heavy-duty polyurethane upgrade over worn or deteriorated OEM rubber bushings. In leaf spring suspensions, the pivot points and shackles absorb tremendous forces with every bump and load cycle — making bushing condition critical to ride quality, handling, and load-carrying ability.

OEM rubber bushings mount the leaf spring to the frame and help dampen noise and vibration, but rubber has a limited lifespan. Once rubber fails from wear, age, or road grime exposure, the effectiveness of the entire leaf spring assembly is severely compromised. Prothane's premium-grade polyurethane material is significantly more durable, resists road grime and contaminants, and maintains its structural integrity far longer than stock rubber.

Key Features:

• Premium-grade polyurethane construction — stronger and longer-lasting than OEM rubber
• Resistant to road grime, oils, and environmental contaminants
• Precision-fabricated sleeves and components for a perfect, rattle-free fit
• Formulated to retain Prothane Super Grease for quiet, smooth operation
• Provides necessary rigidity at leaf spring pivot and shackle mounting points
• Available in black (graphite-infused polyurethane blend)
• Backed by Prothane's Lifetime Warranty against defects in materials and workmanship

Installation Note: Proper lubrication is essential for quiet operation. Apply the included Prothane Super Grease generously to both the outside of each bushing and the inner sleeve contact surfaces during installation. The sleeve rotates inside the polyurethane bushing — insufficient grease is the leading cause of post-installation squeaking.

Upgrade your leaf spring suspension with confidence — the Prothane 18-1006 kit includes all necessary bushings and sleeves for a complete, professional-quality installation.