78-88 GM G-Body Rear Coilover Bracket Kit

The 78–88 GM G-Body Rear Coilover Bracket Kit from UMI Performance delivers the foundation for modern suspension geometry and ride quality in classic General Motors G-Body platforms. Built for enthusiasts upgrading vintage muscle cars, street machines, and restomod builds, this bolt-on coilover bracket kit replaces factory leaf spring mounts with adjustable coil-over shock hardware, enabling independent rear suspension tuning and dramatically improved handling characteristics. Whether you're building a 1978–1988 Chevrolet Monte Carlo, Malibu, Pontiac Grand Prix, or Oldsmobile Cutlass, this kit addresses the stock suspension's inherent limitations with a modern, geometry-optimized solution.

Constructed from high-strength steel and finished in durable black powder coat, the 78–88 GM G-Body Rear Coilover Bracket Kit integrates seamlessly with factory frame attachment points using a straightforward bolt-on installation—no welding required. The precision-engineered bracket design accommodates standard coil-over shocks, allowing end users to select damper rates, spring stiffness, and ride height to match their performance objectives. The black powder-coated finish resists corrosion and UV degradation, ensuring longevity in both street and track environments. At 7.33 lbs and measuring 6.5 x 6.5 x 12 inches, the kit ships complete with all necessary hardware and mounting components for full rear-end installation.

This coilover bracket kit is ideal for performance builders, vintage car enthusiasts, and restoration shops targeting improved cornering stability, load transfer control, and adjustable suspension geometry on first-generation G-Body chassis. Installation is accessible to experienced DIY mechanics or professional shops with basic hand tools and modest suspension knowledge; the bolt-on design eliminates cutting, sectioning, or structural modifications to the vehicle frame. Compatibility spans the full 1978–1988 G-Body range, making it a versatile upgrade for a broad enthusiast community. Proper installation, combined with high-quality coil-over shocks and correctly rated springs, unlocks handling performance that rivals modern platforms while preserving the classic aesthetics of these iconic American cars.