Prothane 4-1006-BL Leaf Spring Eye and Shackle Bushing Kit Black

The Prothane 4-1006-BL is a complete rear leaf spring eye and shackle bushing kit engineered to replace worn or deteriorated OEM rubber bushings with premium-grade polyurethane components. Leaf spring suspensions place significant stress on pivot points and shackle mounting locations, causing factory rubber bushings to compress, crack, and lose their shape over time — leading to sloppy handling, clunking noises, and reduced suspension control.

Prothane's polyurethane material is substantially firmer than OEM rubber, delivering improved chassis feedback, tighter suspension geometry, and longer service life. Unlike rubber, polyurethane resists oil, grease, and environmental degradation, making it ideal for daily drivers and performance applications alike.

Key Features:

• Premium-grade polyurethane construction for enhanced durability over OEM rubber
• Replaces soft, worn leaf spring eye bushings and shackle bushings
• Precision-fabricated sleeves included to ensure a correct, rattle-free fit
• Resists oil, ozone, and weather-related deterioration
• Black finish
• Sold as a complete kit with all necessary hardware

Prothane has been manufacturing polyurethane suspension, driveline, and chassis components for decades, offering one of the most comprehensive bushing lineups available. The 4-1006-BL kit is a direct-fit upgrade designed to restore and improve suspension performance.