Prothane 7-1056 Spring Eye & HD Shackle Polyurethane Bushing Kit

The Prothane 7-1056 is a premium polyurethane Spring Eye and Heavy Duty Shackle Bushing Kit designed to replace worn, deteriorated OEM rubber bushings in leaf spring suspensions. Leaf spring pivot points and shackles are subjected to substantial and constant forces during normal driving — making the condition of these bushings critical to proper suspension performance and vehicle control.

Prothane's premium-grade polyurethane construction delivers far greater durability than stock rubber, resisting road grime, oils, and the kind of compression fatigue that causes factory bushings to blow out over time. Unlike OEM rubber, polyurethane does not degrade under load, maintaining consistent geometry and firmness throughout its service life. All included metal sleeves are precision-fabricated to ensure a correct, rattle-free fit at every mounting point.

Key Features:

• Premium-grade polyurethane construction — outlasts OEM rubber
• Heavy-duty shackle bushings for enhanced load handling
• Covers both spring eye and shackle positions in a single kit
• Precision-machined metal sleeves included for proper fit
• Includes Prothane Super Grease for installation
• Available in red or black (same durometer/hardness)
• Backed by Prothane's lifetime warranty for the original purchaser

Apply the included Prothane Super Grease to all bushing surfaces during installation to ensure smooth operation and prevent squeaking. This kit is a direct-fit solution for restoring suspension integrity and improving overall chassis feel in vehicles with mono-leaf rear spring setups.