99-09 GM P/U 1500 Spring Bushings

The 99-09 GM P/U 1500 Spring Bushings from Prothane are polyurethane replacements designed for the front leaf spring suspension on full-size GM trucks and vans. If you've noticed clunking noises during acceleration, braking, or rough road surfaces, worn OEM rubber bushings are likely the culprit. These bushings isolate the leaf spring from the frame, absorb suspension articulation, and maintain proper geometry—making them critical for drivability, handling, and longevity of your truck's suspension components.

Prothane's polyurethane formulation offers superior durability and consistency compared to factory rubber, which hardens and deteriorates under UV exposure, heat cycles, and load stress over 15–20 years of service. The red polyurethane sleeves are bonded to zinc oxide-plated steel shells, ensuring a secure fit in the factory spring perches while resisting compression set and maintaining stiffness across temperature swings. This kit restores precise suspension geometry, reduces play in the leaf spring attachment points, and eliminates the creep that develops in aged rubber—translating to tighter handling, improved braking response, and fewer false positives from suspension knock.

This bushing kit is essential for truck owners running 1999–2009 GM full-size pickups (C/K 1500) and full-size vans (such as the Suburban or Tahoe platform) as part of a comprehensive front-end refresh or isolated suspension maintenance. Installation requires disassembling the front leaf spring assembly and pressing or driving out the old bushings before seating the new polyurethane units—a task best handled with press equipment or professional suspension work. Whether you're restoring a high-mileage work truck or eliminating annoying clunks on a daily driver, Prothane's 99-09 GM P/U 1500 Spring Bushings deliver the precision fit and long-term performance that modern polyurethane suspension components are known for.