Prothane 7-806BL Black GM Frame Shackle Bushing Kit 4WD Pickup Blazer 1967-1970

The Prothane 7-806-BL is a black polyurethane frame shackle bushing kit designed as a direct upgrade over the factory rubber bushings on 1967–1970 GM 4WD pickups and Blazers. Polyurethane construction delivers greater durability and resistance to road grime, oil, and weathering compared to OEM rubber, helping to maintain proper leaf spring geometry and chassis rigidity over the long term.

OEM rubber frame shackle bushings tend to deteriorate from wear, heat, and exposure to road contaminants. Once they fail, the leaf spring's ability to absorb impact and distribute load across the chassis is significantly diminished. Prothane's premium-grade polyurethane resists these failure modes, providing a longer service life and more consistent suspension performance.

Key Features:

• Premium-grade polyurethane construction — stronger and more durable than factory rubber
• Resistant to road grime, oil, and environmental degradation
• Includes Prothane Super Grease for lubrication during installation to ensure quiet operation
• Black color with graphite content in the polyurethane compound for added noise and squeak reduction
• Precision-molded for accurate fit to OEM mounting dimensions
• Backed by Prothane's lifetime warranty against defects in materials and workmanship

Proper lubrication with the included Super Grease during installation is essential to prevent squeaking and ensure optimal bushing performance. This kit is the black variant of the 7-806 series; red is also available separately.