Prothane 1-1004-BL Leaf Spring Eye & Shackle Bushing Kit - Black Polyurethane

The Prothane 1-1004-BL Leaf Spring Eye and Shackle Bushing Kit is engineered to replace worn or deteriorated OEM rubber bushings in leaf spring suspension systems. Leaf spring pivot points and shackles are subjected to intense stress and repeated loading forces, making high-quality bushing material critical for maintaining proper suspension geometry and ride quality.

Prothane's premium-grade polyurethane compound delivers superior resistance to compression set, abrasion, and degradation from oil, grease, and road contaminants — common failure points that cause OEM rubber bushings to crack, soften, and blow out prematurely. The result is improved suspension response, reduced spring wrap, and longer service life compared to factory rubber components.

Key Features:

• Premium black polyurethane construction for durability and performance
• Resists oil, grease, ozone, and road chemicals that degrade OEM rubber
• Maintains consistent suspension geometry under heavy load and repeated stress
• Precision-fabricated sleeves and hardware included for a perfect, rattle-free fit
• Direct OEM replacement — no modifications required for installation
• Improved suspension control and reduced spring deflection compared to rubber

All necessary sleeves, hardware, and components are included in the kit, precision fabricated to ensure a proper fit. Prothane bushing kits are a trusted upgrade for restoring or improving leaf spring suspension performance on trucks, SUVs, and performance vehicles.